Home / 3,171.38-4,759.22-1,119.38

Finding the Fourth Proportional to 3,171.38, 4,759.22 and 1,119.38

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Solution

The fourth proportional to 3,171.38, 4,759.22 and 1,119.38 is: 1,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.38 : 4,759.22 = 1,119.38 : x
  2. Step 2: Convert to fraction form
    3,171.38/4,759.22 = 1,119.38/x
  3. Step 3: Cross multiply
    3,171.38x = 4,759.22 × 1,119.38
  4. Step 4: Simplify right side
    3,171.38x = 5,327,375.68
  5. Step 5: Solve for x
    x = 5,327,375.68/3,171.38
  6. Step 6: Final answer
    x = 1,679.83

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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.