Home / 3,781.12-5,216.26-2,520.95

Finding the Fourth Proportional to 3,781.12, 5,216.26 and 2,520.95

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Solution

The fourth proportional to 3,781.12, 5,216.26 and 2,520.95 is: 3,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.12 : 5,216.26 = 2,520.95 : x
  2. Step 2: Convert to fraction form
    3,781.12/5,216.26 = 2,520.95/x
  3. Step 3: Cross multiply
    3,781.12x = 5,216.26 × 2,520.95
  4. Step 4: Simplify right side
    3,781.12x = 13,149,930.65
  5. Step 5: Solve for x
    x = 13,149,930.65/3,781.12
  6. Step 6: Final answer
    x = 3,477.79

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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.