Home / 3,171.32-4,755.27-1,439

Finding the Fourth Proportional to 3,171.32, 4,755.27 and 1,439

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Solution

The fourth proportional to 3,171.32, 4,755.27 and 1,439 is: 2,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.32 : 4,755.27 = 1,439 : x
  2. Step 2: Convert to fraction form
    3,171.32/4,755.27 = 1,439/x
  3. Step 3: Cross multiply
    3,171.32x = 4,755.27 × 1,439
  4. Step 4: Simplify right side
    3,171.32x = 6,842,833.53
  5. Step 5: Solve for x
    x = 6,842,833.53/3,171.32
  6. Step 6: Final answer
    x = 2,157.72

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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.