Home / 3,422.60-5,134.11-1,447.86

Finding the Fourth Proportional to 3,422.60, 5,134.11 and 1,447.86

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Solution

The fourth proportional to 3,422.60, 5,134.11 and 1,447.86 is: 2,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.60 : 5,134.11 = 1,447.86 : x
  2. Step 2: Convert to fraction form
    3,422.60/5,134.11 = 1,447.86/x
  3. Step 3: Cross multiply
    3,422.60x = 5,134.11 × 1,447.86
  4. Step 4: Simplify right side
    3,422.60x = 7,433,446.83
  5. Step 5: Solve for x
    x = 7,433,446.83/3,422.60
  6. Step 6: Final answer
    x = 2,171.87

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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.