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Finding the Fourth Proportional to 4,251.52, 6,373.84 and 1,328.32

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Solution

The fourth proportional to 4,251.52, 6,373.84 and 1,328.32 is: 1,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.52 : 6,373.84 = 1,328.32 : x
  2. Step 2: Convert to fraction form
    4,251.52/6,373.84 = 1,328.32/x
  3. Step 3: Cross multiply
    4,251.52x = 6,373.84 × 1,328.32
  4. Step 4: Simplify right side
    4,251.52x = 8,466,499.15
  5. Step 5: Solve for x
    x = 8,466,499.15/4,251.52
  6. Step 6: Final answer
    x = 1,991.41

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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.