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Finding the Third Proportional to 3,405.38 and 7,354.13

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Solution

The third proportional to 3,405.38 and 7,354.13 is: 15,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.38 : 7,354.13 = 7,354.13 : x
  2. Step 2: Convert to fraction form
    3,405.38/7,354.13 = 7,354.13/x
  3. Step 3: Cross multiply
    3,405.38x = 7,354.13 × 7,354.13
  4. Step 4: Simplify right side
    3,405.38x = 54,083,154.52
  5. Step 5: Solve for x
    x = 54,083,154.52/3,405.38
  6. Step 6: Final answer
    x = 15,881.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.