Home / 3,882.80-5,358.29-2,114.39

Finding the Fourth Proportional to 3,882.80, 5,358.29 and 2,114.39

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Solution

The fourth proportional to 3,882.80, 5,358.29 and 2,114.39 is: 2,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.80 : 5,358.29 = 2,114.39 : x
  2. Step 2: Convert to fraction form
    3,882.80/5,358.29 = 2,114.39/x
  3. Step 3: Cross multiply
    3,882.80x = 5,358.29 × 2,114.39
  4. Step 4: Simplify right side
    3,882.80x = 11,329,517.62
  5. Step 5: Solve for x
    x = 11,329,517.62/3,882.80
  6. Step 6: Final answer
    x = 2,917.88

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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.