Home / 3,882.39-5,357.61-2,113.95

Finding the Fourth Proportional to 3,882.39, 5,357.61 and 2,113.95

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Solution

The fourth proportional to 3,882.39, 5,357.61 and 2,113.95 is: 2,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.39 : 5,357.61 = 2,113.95 : x
  2. Step 2: Convert to fraction form
    3,882.39/5,357.61 = 2,113.95/x
  3. Step 3: Cross multiply
    3,882.39x = 5,357.61 × 2,113.95
  4. Step 4: Simplify right side
    3,882.39x = 11,325,719.66
  5. Step 5: Solve for x
    x = 11,325,719.66/3,882.39
  6. Step 6: Final answer
    x = 2,917.20

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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.