Home / 2,766.57-4,147.66-1,379.16

Finding the Fourth Proportional to 2,766.57, 4,147.66 and 1,379.16

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Solution

The fourth proportional to 2,766.57, 4,147.66 and 1,379.16 is: 2,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.57 : 4,147.66 = 1,379.16 : x
  2. Step 2: Convert to fraction form
    2,766.57/4,147.66 = 1,379.16/x
  3. Step 3: Cross multiply
    2,766.57x = 4,147.66 × 1,379.16
  4. Step 4: Simplify right side
    2,766.57x = 5,720,286.77
  5. Step 5: Solve for x
    x = 5,720,286.77/2,766.57
  6. Step 6: Final answer
    x = 2,067.65

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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.