Home / 5,151.80-7,726.17-2,685.35

Finding the Fourth Proportional to 5,151.80, 7,726.17 and 2,685.35

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Solution

The fourth proportional to 5,151.80, 7,726.17 and 2,685.35 is: 4,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.80 : 7,726.17 = 2,685.35 : x
  2. Step 2: Convert to fraction form
    5,151.80/7,726.17 = 2,685.35/x
  3. Step 3: Cross multiply
    5,151.80x = 7,726.17 × 2,685.35
  4. Step 4: Simplify right side
    5,151.80x = 20,747,431.98
  5. Step 5: Solve for x
    x = 20,747,431.98/5,151.80
  6. Step 6: Final answer
    x = 4,027.22

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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.