Ratios and Proportions

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the

4.2.1: Understanding Proportions

Using proportions can help you solve problems such as increasing a recipe to feed a larger crowd of people, creating a design with certain consistent features, or enlarging or reducing an

Proportions

What are proportions? Learn how to identify a proportion when two ratios are given and explore some real-life examples.

What is a Proportion in Math

Here you will learn what a proportion is, including what direct and inverse proportions are and how to solve problems with them. Students will first learn about proportions in math as part of ratios and

Basic or Simple Proportions

Proportion is a statement showing that two ratios are equal. There are two ways to write a proportion: Both can be read as “ a a is to b b as c c is to d d ”. Next, let''s identify the parts of a proportion. We

Proportion

When we say that the ratios in a proportion are equal, we mean that we can multiply or divide one ratio by some constant to result in the other. So, for the example above, we can either multiply all the

Proportions

When shapes are "in proportion" their relative sizes are the same. Here we see that the ratios of head length to body length are the same in both drawings. So they are proportional. Making the head too

What is Proportion

Proportion is a mathematical comparison between two numbers. According to proportion, if two sets of given numbers are increasing or decreasing in the same ratio, then the ratios are said to be directly

Proportions

A proportion is an equation that shows that two ratios are equal. Master writing and solving proportions in this interactive math lesson. Start learning now!

Proportions

Explains the basics and terminology of proportions; demonstrates how to set up and solve proportions.