Home / 3,419.57-5,129.15-1,227.71

Finding the Fourth Proportional to 3,419.57, 5,129.15 and 1,227.71

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Solution

The fourth proportional to 3,419.57, 5,129.15 and 1,227.71 is: 1,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.57 : 5,129.15 = 1,227.71 : x
  2. Step 2: Convert to fraction form
    3,419.57/5,129.15 = 1,227.71/x
  3. Step 3: Cross multiply
    3,419.57x = 5,129.15 × 1,227.71
  4. Step 4: Simplify right side
    3,419.57x = 6,297,076.96
  5. Step 5: Solve for x
    x = 6,297,076.96/3,419.57
  6. Step 6: Final answer
    x = 1,841.48

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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.