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Finding the Fourth Proportional to 1,349.29, 2,024.12 and 471.70

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Solution

The fourth proportional to 1,349.29, 2,024.12 and 471.70 is: 707.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.29 : 2,024.12 = 471.70 : x
  2. Step 2: Convert to fraction form
    1,349.29/2,024.12 = 471.70/x
  3. Step 3: Cross multiply
    1,349.29x = 2,024.12 × 471.70
  4. Step 4: Simplify right side
    1,349.29x = 954,777.40
  5. Step 5: Solve for x
    x = 954,777.40/1,349.29
  6. Step 6: Final answer
    x = 707.61

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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.