Home / 5,418.26-8,122.11-2,785.82

Finding the Fourth Proportional to 5,418.26, 8,122.11 and 2,785.82

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Solution

The fourth proportional to 5,418.26, 8,122.11 and 2,785.82 is: 4,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.26 : 8,122.11 = 2,785.82 : x
  2. Step 2: Convert to fraction form
    5,418.26/8,122.11 = 2,785.82/x
  3. Step 3: Cross multiply
    5,418.26x = 8,122.11 × 2,785.82
  4. Step 4: Simplify right side
    5,418.26x = 22,626,736.48
  5. Step 5: Solve for x
    x = 22,626,736.48/5,418.26
  6. Step 6: Final answer
    x = 4,176.02

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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.