Home / 3,882.30-5,357.57-2,113.86

Finding the Fourth Proportional to 3,882.30, 5,357.57 and 2,113.86

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Solution

The fourth proportional to 3,882.30, 5,357.57 and 2,113.86 is: 2,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.30 : 5,357.57 = 2,113.86 : x
  2. Step 2: Convert to fraction form
    3,882.30/5,357.57 = 2,113.86/x
  3. Step 3: Cross multiply
    3,882.30x = 5,357.57 × 2,113.86
  4. Step 4: Simplify right side
    3,882.30x = 11,325,142.35
  5. Step 5: Solve for x
    x = 11,325,142.35/3,882.30
  6. Step 6: Final answer
    x = 2,917.12

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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.