Home / 3,615.38-5,419.40-1,425.66

Finding the Fourth Proportional to 3,615.38, 5,419.40 and 1,425.66

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Solution

The fourth proportional to 3,615.38, 5,419.40 and 1,425.66 is: 2,137.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.38 : 5,419.40 = 1,425.66 : x
  2. Step 2: Convert to fraction form
    3,615.38/5,419.40 = 1,425.66/x
  3. Step 3: Cross multiply
    3,615.38x = 5,419.40 × 1,425.66
  4. Step 4: Simplify right side
    3,615.38x = 7,726,221.80
  5. Step 5: Solve for x
    x = 7,726,221.80/3,615.38
  6. Step 6: Final answer
    x = 2,137.04

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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.