Home / 3,581.11-5,372.13-1,115.95

Finding the Fourth Proportional to 3,581.11, 5,372.13 and 1,115.95

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Solution

The fourth proportional to 3,581.11, 5,372.13 and 1,115.95 is: 1,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.11 : 5,372.13 = 1,115.95 : x
  2. Step 2: Convert to fraction form
    3,581.11/5,372.13 = 1,115.95/x
  3. Step 3: Cross multiply
    3,581.11x = 5,372.13 × 1,115.95
  4. Step 4: Simplify right side
    3,581.11x = 5,995,028.47
  5. Step 5: Solve for x
    x = 5,995,028.47/3,581.11
  6. Step 6: Final answer
    x = 1,674.07

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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.