Home / 2,511.20-3,766.70-1,195.90

Finding the Fourth Proportional to 2,511.20, 3,766.70 and 1,195.90

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Solution

The fourth proportional to 2,511.20, 3,766.70 and 1,195.90 is: 1,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.20 : 3,766.70 = 1,195.90 : x
  2. Step 2: Convert to fraction form
    2,511.20/3,766.70 = 1,195.90/x
  3. Step 3: Cross multiply
    2,511.20x = 3,766.70 × 1,195.90
  4. Step 4: Simplify right side
    2,511.20x = 4,504,596.53
  5. Step 5: Solve for x
    x = 4,504,596.53/2,511.20
  6. Step 6: Final answer
    x = 1,793.80

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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.