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Finding the Fourth Proportional to 2,167.52, 3,251.36 and 628.48

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Solution

The fourth proportional to 2,167.52, 3,251.36 and 628.48 is: 942.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.52 : 3,251.36 = 628.48 : x
  2. Step 2: Convert to fraction form
    2,167.52/3,251.36 = 628.48/x
  3. Step 3: Cross multiply
    2,167.52x = 3,251.36 × 628.48
  4. Step 4: Simplify right side
    2,167.52x = 2,043,414.73
  5. Step 5: Solve for x
    x = 2,043,414.73/2,167.52
  6. Step 6: Final answer
    x = 942.74

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1.5x scale

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.