Home / 3,180.81-4,766.61-2,192.61

Finding the Fourth Proportional to 3,180.81, 4,766.61 and 2,192.61

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Solution

The fourth proportional to 3,180.81, 4,766.61 and 2,192.61 is: 3,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.81 : 4,766.61 = 2,192.61 : x
  2. Step 2: Convert to fraction form
    3,180.81/4,766.61 = 2,192.61/x
  3. Step 3: Cross multiply
    3,180.81x = 4,766.61 × 2,192.61
  4. Step 4: Simplify right side
    3,180.81x = 10,451,316.75
  5. Step 5: Solve for x
    x = 10,451,316.75/3,180.81
  6. Step 6: Final answer
    x = 3,285.74

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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.