Home / 3,881.91-5,356.13-2,202.95

Finding the Fourth Proportional to 3,881.91, 5,356.13 and 2,202.95

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Solution

The fourth proportional to 3,881.91, 5,356.13 and 2,202.95 is: 3,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.91 : 5,356.13 = 2,202.95 : x
  2. Step 2: Convert to fraction form
    3,881.91/5,356.13 = 2,202.95/x
  3. Step 3: Cross multiply
    3,881.91x = 5,356.13 × 2,202.95
  4. Step 4: Simplify right side
    3,881.91x = 11,799,248.79
  5. Step 5: Solve for x
    x = 11,799,248.79/3,881.91
  6. Step 6: Final answer
    x = 3,039.55

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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.