Writing and Solving Proportions. Proportions Proportion is an equation stating that two ratios are equivalent. Proportional are two quantities that form.

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Presentation transcript:

Writing and Solving Proportions

Proportions Proportion is an equation stating that two ratios are equivalent. Proportional are two quantities that form a proportion.

Writing Proportions You can write proportions in three different ways: 1.Using a table 2.Using columns 3.Using rows

Example:

Cross Product

Cross Products Property The cross products of a proportion are equal.

Practice

You read the first 20 pages of a book in 25 minutes. You read 36 pages in 45 minutes. Is the number of pages read proportional to your time?