Home / 3,679.31-5,065.90-3,247.70

Finding the Fourth Proportional to 3,679.31, 5,065.90 and 3,247.70

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Solution

The fourth proportional to 3,679.31, 5,065.90 and 3,247.70 is: 4,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.31 : 5,065.90 = 3,247.70 : x
  2. Step 2: Convert to fraction form
    3,679.31/5,065.90 = 3,247.70/x
  3. Step 3: Cross multiply
    3,679.31x = 5,065.90 × 3,247.70
  4. Step 4: Simplify right side
    3,679.31x = 16,452,489.98
  5. Step 5: Solve for x
    x = 16,452,489.98/3,679.31
  6. Step 6: Final answer
    x = 4,471.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.