Home / 5,170.66-7,131.69-3,280.61

Finding the Fourth Proportional to 5,170.66, 7,131.69 and 3,280.61

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Solution

The fourth proportional to 5,170.66, 7,131.69 and 3,280.61 is: 4,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.66 : 7,131.69 = 3,280.61 : x
  2. Step 2: Convert to fraction form
    5,170.66/7,131.69 = 3,280.61/x
  3. Step 3: Cross multiply
    5,170.66x = 7,131.69 × 3,280.61
  4. Step 4: Simplify right side
    5,170.66x = 23,396,293.53
  5. Step 5: Solve for x
    x = 23,396,293.53/5,170.66
  6. Step 6: Final answer
    x = 4,524.82

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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.