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Finding the Fourth Proportional to 1,337.31, 2,005.89 and 363.48

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Solution

The fourth proportional to 1,337.31, 2,005.89 and 363.48 is: 545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.31 : 2,005.89 = 363.48 : x
  2. Step 2: Convert to fraction form
    1,337.31/2,005.89 = 363.48/x
  3. Step 3: Cross multiply
    1,337.31x = 2,005.89 × 363.48
  4. Step 4: Simplify right side
    1,337.31x = 729,100.90
  5. Step 5: Solve for x
    x = 729,100.90/1,337.31
  6. Step 6: Final answer
    x = 545.20

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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.