Home / 5,388.28-8,078.10-2,791.96

Finding the Fourth Proportional to 5,388.28, 8,078.10 and 2,791.96

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Solution

The fourth proportional to 5,388.28, 8,078.10 and 2,791.96 is: 4,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.28 : 8,078.10 = 2,791.96 : x
  2. Step 2: Convert to fraction form
    5,388.28/8,078.10 = 2,791.96/x
  3. Step 3: Cross multiply
    5,388.28x = 8,078.10 × 2,791.96
  4. Step 4: Simplify right side
    5,388.28x = 22,553,732.08
  5. Step 5: Solve for x
    x = 22,553,732.08/5,388.28
  6. Step 6: Final answer
    x = 4,185.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.