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Finding the Fourth Proportional to 1,349.87, 2,024.87 and 484.20

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Solution

The fourth proportional to 1,349.87, 2,024.87 and 484.20 is: 726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.87 : 2,024.87 = 484.20 : x
  2. Step 2: Convert to fraction form
    1,349.87/2,024.87 = 484.20/x
  3. Step 3: Cross multiply
    1,349.87x = 2,024.87 × 484.20
  4. Step 4: Simplify right side
    1,349.87x = 980,439.63
  5. Step 5: Solve for x
    x = 980,439.63/1,349.87
  6. Step 6: Final answer
    x = 726.32

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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.