Home / 7,331.31-10,117.17-3,974.20

Finding the Fourth Proportional to 7,331.31, 10,117.17 and 3,974.20

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Solution

The fourth proportional to 7,331.31, 10,117.17 and 3,974.20 is: 5,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.31 : 10,117.17 = 3,974.20 : x
  2. Step 2: Convert to fraction form
    7,331.31/10,117.17 = 3,974.20/x
  3. Step 3: Cross multiply
    7,331.31x = 10,117.17 × 3,974.20
  4. Step 4: Simplify right side
    7,331.31x = 40,207,631.72
  5. Step 5: Solve for x
    x = 40,207,631.72/7,331.31
  6. Step 6: Final answer
    x = 5,484.37

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Similar ratio
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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.