Home / 2,791.11-4,187.25-843.17

Finding the Fourth Proportional to 2,791.11, 4,187.25 and 843.17

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Solution

The fourth proportional to 2,791.11, 4,187.25 and 843.17 is: 1,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.11 : 4,187.25 = 843.17 : x
  2. Step 2: Convert to fraction form
    2,791.11/4,187.25 = 843.17/x
  3. Step 3: Cross multiply
    2,791.11x = 4,187.25 × 843.17
  4. Step 4: Simplify right side
    2,791.11x = 3,530,542.65
  5. Step 5: Solve for x
    x = 3,530,542.65/2,791.11
  6. Step 6: Final answer
    x = 1,264.92

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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.