Home / 3,882.10-5,358.45-2,392.15

Finding the Fourth Proportional to 3,882.10, 5,358.45 and 2,392.15

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Solution

The fourth proportional to 3,882.10, 5,358.45 and 2,392.15 is: 3,301.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.10 : 5,358.45 = 2,392.15 : x
  2. Step 2: Convert to fraction form
    3,882.10/5,358.45 = 2,392.15/x
  3. Step 3: Cross multiply
    3,882.10x = 5,358.45 × 2,392.15
  4. Step 4: Simplify right side
    3,882.10x = 12,818,216.17
  5. Step 5: Solve for x
    x = 12,818,216.17/3,882.10
  6. Step 6: Final answer
    x = 3,301.88

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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.