Home / 4,251.64-6,347.92-3,989.20

Finding the Fourth Proportional to 4,251.64, 6,347.92 and 3,989.20

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Solution

The fourth proportional to 4,251.64, 6,347.92 and 3,989.20 is: 5,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.64 : 6,347.92 = 3,989.20 : x
  2. Step 2: Convert to fraction form
    4,251.64/6,347.92 = 3,989.20/x
  3. Step 3: Cross multiply
    4,251.64x = 6,347.92 × 3,989.20
  4. Step 4: Simplify right side
    4,251.64x = 25,323,122.46
  5. Step 5: Solve for x
    x = 25,323,122.46/4,251.64
  6. Step 6: Final answer
    x = 5,956.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.