Finding the Third Proportional to 2,160 and 3,123
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Solution
The third proportional to 2,160 and 3,123 is: 4,515.34
Step by Step Solution
- Step 1: Write the proportion equation
2,160 : 3,123 = 3,123 : x - Step 2: Convert to fraction form
2,160/3,123 = 3,123/x - Step 3: Cross multiply
2,160x = 3,123 × 3,123 - Step 4: Simplify right side
2,160x = 9,753,129 - Step 5: Solve for x
x = 9,753,129/2,160 - Step 6: Final answer
x = 4,515.34
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Why These Related Problems?
These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.