Question

How can you check to see if two ratios form a proportion? Explain the method you used to find the answer to the previous problem.

Answer 1

Write a proportion using the ratios. Find the cross products. If the cross products are equal, then the ratios form a proportion.

Explanation:

Answer 2

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 extremes, and the middle terms, called the means.

Explanation: