Home / 5,155.62-7,726.54-2,685.26

Finding the Fourth Proportional to 5,155.62, 7,726.54 and 2,685.26

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Solution

The fourth proportional to 5,155.62, 7,726.54 and 2,685.26 is: 4,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.62 : 7,726.54 = 2,685.26 : x
  2. Step 2: Convert to fraction form
    5,155.62/7,726.54 = 2,685.26/x
  3. Step 3: Cross multiply
    5,155.62x = 7,726.54 × 2,685.26
  4. Step 4: Simplify right side
    5,155.62x = 20,747,716.74
  5. Step 5: Solve for x
    x = 20,747,716.74/5,155.62
  6. Step 6: Final answer
    x = 4,024.30

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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.