Home / 4,042.11-5,579.91-3,143.82

Finding the Fourth Proportional to 4,042.11, 5,579.91 and 3,143.82

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Solution

The fourth proportional to 4,042.11, 5,579.91 and 3,143.82 is: 4,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.11 : 5,579.91 = 3,143.82 : x
  2. Step 2: Convert to fraction form
    4,042.11/5,579.91 = 3,143.82/x
  3. Step 3: Cross multiply
    4,042.11x = 5,579.91 × 3,143.82
  4. Step 4: Simplify right side
    4,042.11x = 17,542,232.66
  5. Step 5: Solve for x
    x = 17,542,232.66/4,042.11
  6. Step 6: Final answer
    x = 4,339.87

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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.