Home / 3,922.90-5,882.45-2,279.92

Finding the Fourth Proportional to 3,922.90, 5,882.45 and 2,279.92

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Solution

The fourth proportional to 3,922.90, 5,882.45 and 2,279.92 is: 3,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.90 : 5,882.45 = 2,279.92 : x
  2. Step 2: Convert to fraction form
    3,922.90/5,882.45 = 2,279.92/x
  3. Step 3: Cross multiply
    3,922.90x = 5,882.45 × 2,279.92
  4. Step 4: Simplify right side
    3,922.90x = 13,411,515.40
  5. Step 5: Solve for x
    x = 13,411,515.40/3,922.90
  6. Step 6: Final answer
    x = 3,418.78

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1.5x scale

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.