Home / 3,981.18-5,494.05-2,212.95

Finding the Fourth Proportional to 3,981.18, 5,494.05 and 2,212.95

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Solution

The fourth proportional to 3,981.18, 5,494.05 and 2,212.95 is: 3,053.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.18 : 5,494.05 = 2,212.95 : x
  2. Step 2: Convert to fraction form
    3,981.18/5,494.05 = 2,212.95/x
  3. Step 3: Cross multiply
    3,981.18x = 5,494.05 × 2,212.95
  4. Step 4: Simplify right side
    3,981.18x = 12,158,057.95
  5. Step 5: Solve for x
    x = 12,158,057.95/3,981.18
  6. Step 6: Final answer
    x = 3,053.88

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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.