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Finding the Fourth Proportional to 1,654.57, 2,481.87 and 558.85

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Solution

The fourth proportional to 1,654.57, 2,481.87 and 558.85 is: 838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,654.57 : 2,481.87 = 558.85 : x
  2. Step 2: Convert to fraction form
    1,654.57/2,481.87 = 558.85/x
  3. Step 3: Cross multiply
    1,654.57x = 2,481.87 × 558.85
  4. Step 4: Simplify right side
    1,654.57x = 1,386,993.05
  5. Step 5: Solve for x
    x = 1,386,993.05/1,654.57
  6. Step 6: Final answer
    x = 838.28

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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.