Home / 6,517.11-9,780.92-3,398.07

Finding the Fourth Proportional to 6,517.11, 9,780.92 and 3,398.07

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Solution

The fourth proportional to 6,517.11, 9,780.92 and 3,398.07 is: 5,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.11 : 9,780.92 = 3,398.07 : x
  2. Step 2: Convert to fraction form
    6,517.11/9,780.92 = 3,398.07/x
  3. Step 3: Cross multiply
    6,517.11x = 9,780.92 × 3,398.07
  4. Step 4: Simplify right side
    6,517.11x = 33,236,233.83
  5. Step 5: Solve for x
    x = 33,236,233.83/6,517.11
  6. Step 6: Final answer
    x = 5,099.84

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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.