Finding the Third Proportional to 662 and 1,138
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Solution
The third proportional to 662 and 1,138 is: 1,956.26
Step by Step Solution
- Step 1: Write the proportion equation
662 : 1,138 = 1,138 : x - Step 2: Convert to fraction form
662/1,138 = 1,138/x - Step 3: Cross multiply
662x = 1,138 × 1,138 - Step 4: Simplify right side
662x = 1,295,044 - Step 5: Solve for x
x = 1,295,044/662 - Step 6: Final answer
x = 1,956.26
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These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.