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Finding the Fourth Proportional to 2,489.75, 3,432.17 and 1,593.39

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Solution

The fourth proportional to 2,489.75, 3,432.17 and 1,593.39 is: 2,196.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.75 : 3,432.17 = 1,593.39 : x
  2. Step 2: Convert to fraction form
    2,489.75/3,432.17 = 1,593.39/x
  3. Step 3: Cross multiply
    2,489.75x = 3,432.17 × 1,593.39
  4. Step 4: Simplify right side
    2,489.75x = 5,468,785.36
  5. Step 5: Solve for x
    x = 5,468,785.36/2,489.75
  6. Step 6: Final answer
    x = 2,196.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.