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Finding the Third Proportional to 754.50 and 1,669.13

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Solution

The third proportional to 754.50 and 1,669.13 is: 3,692.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.50 : 1,669.13 = 1,669.13 : x
  2. Step 2: Convert to fraction form
    754.50/1,669.13 = 1,669.13/x
  3. Step 3: Cross multiply
    754.50x = 1,669.13 × 1,669.13
  4. Step 4: Simplify right side
    754.50x = 2,785,978.27
  5. Step 5: Solve for x
    x = 2,785,978.27/754.50
  6. Step 6: Final answer
    x = 3,692.48

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.