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Finding the Fourth Proportional to 1,626.92, 2,439.84 and 531.04

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Solution

The fourth proportional to 1,626.92, 2,439.84 and 531.04 is: 796.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.92 : 2,439.84 = 531.04 : x
  2. Step 2: Convert to fraction form
    1,626.92/2,439.84 = 531.04/x
  3. Step 3: Cross multiply
    1,626.92x = 2,439.84 × 531.04
  4. Step 4: Simplify right side
    1,626.92x = 1,295,652.63
  5. Step 5: Solve for x
    x = 1,295,652.63/1,626.92
  6. Step 6: Final answer
    x = 796.38

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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.