Home / 3,279.36-4,515.84-2,929.92

Finding the Fourth Proportional to 3,279.36, 4,515.84 and 2,929.92

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Solution

The fourth proportional to 3,279.36, 4,515.84 and 2,929.92 is: 4,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.36 : 4,515.84 = 2,929.92 : x
  2. Step 2: Convert to fraction form
    3,279.36/4,515.84 = 2,929.92/x
  3. Step 3: Cross multiply
    3,279.36x = 4,515.84 × 2,929.92
  4. Step 4: Simplify right side
    3,279.36x = 13,231,049.93
  5. Step 5: Solve for x
    x = 13,231,049.93/3,279.36
  6. Step 6: Final answer
    x = 4,034.64

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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.