Home / 3,882.10-5,357.42-2,113.82

Finding the Fourth Proportional to 3,882.10, 5,357.42 and 2,113.82

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Solution

The fourth proportional to 3,882.10, 5,357.42 and 2,113.82 is: 2,917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.10 : 5,357.42 = 2,113.82 : x
  2. Step 2: Convert to fraction form
    3,882.10/5,357.42 = 2,113.82/x
  3. Step 3: Cross multiply
    3,882.10x = 5,357.42 × 2,113.82
  4. Step 4: Simplify right side
    3,882.10x = 11,324,621.54
  5. Step 5: Solve for x
    x = 11,324,621.54/3,882.10
  6. Step 6: Final answer
    x = 2,917.14

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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.