Home / 6,979.17-10,469.76-3,691.38

Finding the Fourth Proportional to 6,979.17, 10,469.76 and 3,691.38

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Solution

The fourth proportional to 6,979.17, 10,469.76 and 3,691.38 is: 5,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.17 : 10,469.76 = 3,691.38 : x
  2. Step 2: Convert to fraction form
    6,979.17/10,469.76 = 3,691.38/x
  3. Step 3: Cross multiply
    6,979.17x = 10,469.76 × 3,691.38
  4. Step 4: Simplify right side
    6,979.17x = 38,647,862.67
  5. Step 5: Solve for x
    x = 38,647,862.67/6,979.17
  6. Step 6: Final answer
    x = 5,537.60

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1.5x scale

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.