Home / 5,380.78-8,067.45-2,743.17

Finding the Fourth Proportional to 5,380.78, 8,067.45 and 2,743.17

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Solution

The fourth proportional to 5,380.78, 8,067.45 and 2,743.17 is: 4,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.78 : 8,067.45 = 2,743.17 : x
  2. Step 2: Convert to fraction form
    5,380.78/8,067.45 = 2,743.17/x
  3. Step 3: Cross multiply
    5,380.78x = 8,067.45 × 2,743.17
  4. Step 4: Simplify right side
    5,380.78x = 22,130,351.42
  5. Step 5: Solve for x
    x = 22,130,351.42/5,380.78
  6. Step 6: Final answer
    x = 4,112.85

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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.