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Finding the Third Proportional to 3,505.78 and 5,275.13

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Solution

The third proportional to 3,505.78 and 5,275.13 is: 7,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.78 : 5,275.13 = 5,275.13 : x
  2. Step 2: Convert to fraction form
    3,505.78/5,275.13 = 5,275.13/x
  3. Step 3: Cross multiply
    3,505.78x = 5,275.13 × 5,275.13
  4. Step 4: Simplify right side
    3,505.78x = 27,826,943.77
  5. Step 5: Solve for x
    x = 27,826,943.77/3,505.78
  6. Step 6: Final answer
    x = 7,937.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.