Home / 5,169.66-7,130.31-3,279.61

Finding the Fourth Proportional to 5,169.66, 7,130.31 and 3,279.61

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Solution

The fourth proportional to 5,169.66, 7,130.31 and 3,279.61 is: 4,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.66 : 7,130.31 = 3,279.61 : x
  2. Step 2: Convert to fraction form
    5,169.66/7,130.31 = 3,279.61/x
  3. Step 3: Cross multiply
    5,169.66x = 7,130.31 × 3,279.61
  4. Step 4: Simplify right side
    5,169.66x = 23,384,627.78
  5. Step 5: Solve for x
    x = 23,384,627.78/5,169.66
  6. Step 6: Final answer
    x = 4,523.44

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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.