Home / 3,279.97-4,915.77-2,109.52

Finding the Fourth Proportional to 3,279.97, 4,915.77 and 2,109.52

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Solution

The fourth proportional to 3,279.97, 4,915.77 and 2,109.52 is: 3,161.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.97 : 4,915.77 = 2,109.52 : x
  2. Step 2: Convert to fraction form
    3,279.97/4,915.77 = 2,109.52/x
  3. Step 3: Cross multiply
    3,279.97x = 4,915.77 × 2,109.52
  4. Step 4: Simplify right side
    3,279.97x = 10,369,915.13
  5. Step 5: Solve for x
    x = 10,369,915.13/3,279.97
  6. Step 6: Final answer
    x = 3,161.59

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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.