Home / 5,375.82-7,418.61-3,137.79

Finding the Fourth Proportional to 5,375.82, 7,418.61 and 3,137.79

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Solution

The fourth proportional to 5,375.82, 7,418.61 and 3,137.79 is: 4,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.82 : 7,418.61 = 3,137.79 : x
  2. Step 2: Convert to fraction form
    5,375.82/7,418.61 = 3,137.79/x
  3. Step 3: Cross multiply
    5,375.82x = 7,418.61 × 3,137.79
  4. Step 4: Simplify right side
    5,375.82x = 23,278,040.27
  5. Step 5: Solve for x
    x = 23,278,040.27/5,375.82
  6. Step 6: Final answer
    x = 4,330.14

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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.