Home / 5,198.31-7,171.39-3,519.11

Finding the Fourth Proportional to 5,198.31, 7,171.39 and 3,519.11

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Solution

The fourth proportional to 5,198.31, 7,171.39 and 3,519.11 is: 4,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.31 : 7,171.39 = 3,519.11 : x
  2. Step 2: Convert to fraction form
    5,198.31/7,171.39 = 3,519.11/x
  3. Step 3: Cross multiply
    5,198.31x = 7,171.39 × 3,519.11
  4. Step 4: Simplify right side
    5,198.31x = 25,236,910.26
  5. Step 5: Solve for x
    x = 25,236,910.26/5,198.31
  6. Step 6: Final answer
    x = 4,854.83

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1.5x scale

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.