Practice Objectives
• Demonstrate the ability to determine if two ratios represent a proportion

## Practice Identifying Proportions

Instructions:

Answer 7/10 questions correctly to pass.

Determine whether each is a proportion.

Problem:

Correct!

Not Correct!

Determine if Two Ratios are Proportional:

1. Form the cross products:
• Multiply the denominator of the left fraction by the numerator of the right fraction
• Multiply the denominator of the right fraction by the numerator of the left fraction
2. Check the result
• If the cross products are equal, we have a proportion
• If the cross products are not equal, we do not have a proportion

Step-by-Step:

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