Home / 5,380.82-8,067.48-2,749.13

Finding the Fourth Proportional to 5,380.82, 8,067.48 and 2,749.13

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Solution

The fourth proportional to 5,380.82, 8,067.48 and 2,749.13 is: 4,121.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.82 : 8,067.48 = 2,749.13 : x
  2. Step 2: Convert to fraction form
    5,380.82/8,067.48 = 2,749.13/x
  3. Step 3: Cross multiply
    5,380.82x = 8,067.48 × 2,749.13
  4. Step 4: Simplify right side
    5,380.82x = 22,178,551.29
  5. Step 5: Solve for x
    x = 22,178,551.29/5,380.82
  6. Step 6: Final answer
    x = 4,121.78

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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.