Home / 6,414.28-8,851.68-3,619.76

Finding the Fourth Proportional to 6,414.28, 8,851.68 and 3,619.76

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Solution

The fourth proportional to 6,414.28, 8,851.68 and 3,619.76 is: 4,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,414.28 : 8,851.68 = 3,619.76 : x
  2. Step 2: Convert to fraction form
    6,414.28/8,851.68 = 3,619.76/x
  3. Step 3: Cross multiply
    6,414.28x = 8,851.68 × 3,619.76
  4. Step 4: Simplify right side
    6,414.28x = 32,040,957.20
  5. Step 5: Solve for x
    x = 32,040,957.20/6,414.28
  6. Step 6: Final answer
    x = 4,995.25

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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.