Home / 3,540.92-5,311.51-1,200.76

Finding the Fourth Proportional to 3,540.92, 5,311.51 and 1,200.76

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Solution

The fourth proportional to 3,540.92, 5,311.51 and 1,200.76 is: 1,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.92 : 5,311.51 = 1,200.76 : x
  2. Step 2: Convert to fraction form
    3,540.92/5,311.51 = 1,200.76/x
  3. Step 3: Cross multiply
    3,540.92x = 5,311.51 × 1,200.76
  4. Step 4: Simplify right side
    3,540.92x = 6,377,832.47
  5. Step 5: Solve for x
    x = 6,377,832.47/3,540.92
  6. Step 6: Final answer
    x = 1,801.18

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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.