Home / 3,439.17-5,158.76-1,247.90

Finding the Fourth Proportional to 3,439.17, 5,158.76 and 1,247.90

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Solution

The fourth proportional to 3,439.17, 5,158.76 and 1,247.90 is: 1,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.17 : 5,158.76 = 1,247.90 : x
  2. Step 2: Convert to fraction form
    3,439.17/5,158.76 = 1,247.90/x
  3. Step 3: Cross multiply
    3,439.17x = 5,158.76 × 1,247.90
  4. Step 4: Simplify right side
    3,439.17x = 6,437,584.57
  5. Step 5: Solve for x
    x = 6,437,584.57/3,439.17
  6. Step 6: Final answer
    x = 1,871.84

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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.