Home / 5,170.26-7,757.91-2,571.78

Finding the Fourth Proportional to 5,170.26, 7,757.91 and 2,571.78

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Solution

The fourth proportional to 5,170.26, 7,757.91 and 2,571.78 is: 3,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.26 : 7,757.91 = 2,571.78 : x
  2. Step 2: Convert to fraction form
    5,170.26/7,757.91 = 2,571.78/x
  3. Step 3: Cross multiply
    5,170.26x = 7,757.91 × 2,571.78
  4. Step 4: Simplify right side
    5,170.26x = 19,951,637.78
  5. Step 5: Solve for x
    x = 19,951,637.78/5,170.26
  6. Step 6: Final answer
    x = 3,858.92

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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.