Home / 3,778.12-5,212.13-2,517.95

Finding the Fourth Proportional to 3,778.12, 5,212.13 and 2,517.95

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Solution

The fourth proportional to 3,778.12, 5,212.13 and 2,517.95 is: 3,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.12 : 5,212.13 = 2,517.95 : x
  2. Step 2: Convert to fraction form
    3,778.12/5,212.13 = 2,517.95/x
  3. Step 3: Cross multiply
    3,778.12x = 5,212.13 × 2,517.95
  4. Step 4: Simplify right side
    3,778.12x = 13,123,844.08
  5. Step 5: Solve for x
    x = 13,123,844.08/3,778.12
  6. Step 6: Final answer
    x = 3,473.65

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1.5x scale

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.