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Finding the Fourth Proportional to 1,349.97, 2,024.43 and 528.15

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Solution

The fourth proportional to 1,349.97, 2,024.43 and 528.15 is: 792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.97 : 2,024.43 = 528.15 : x
  2. Step 2: Convert to fraction form
    1,349.97/2,024.43 = 528.15/x
  3. Step 3: Cross multiply
    1,349.97x = 2,024.43 × 528.15
  4. Step 4: Simplify right side
    1,349.97x = 1,069,202.70
  5. Step 5: Solve for x
    x = 1,069,202.70/1,349.97
  6. Step 6: Final answer
    x = 792.02

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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.