Finding the Third Proportional to 2,553.75 and 3,921.75
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Solution
The third proportional to 2,553.75 and 3,921.75 is: 6,022.56
Step by Step Solution
- Step 1: Write the proportion equation
2,553.75 : 3,921.75 = 3,921.75 : x - Step 2: Convert to fraction form
2,553.75/3,921.75 = 3,921.75/x - Step 3: Cross multiply
2,553.75x = 3,921.75 × 3,921.75 - Step 4: Simplify right side
2,553.75x = 15,380,123.06 - Step 5: Solve for x
x = 15,380,123.06/2,553.75 - Step 6: Final answer
x = 6,022.56
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.