Home / 2,791.66-4,185.33-1,331.50

Finding the Fourth Proportional to 2,791.66, 4,185.33 and 1,331.50

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Solution

The fourth proportional to 2,791.66, 4,185.33 and 1,331.50 is: 1,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.66 : 4,185.33 = 1,331.50 : x
  2. Step 2: Convert to fraction form
    2,791.66/4,185.33 = 1,331.50/x
  3. Step 3: Cross multiply
    2,791.66x = 4,185.33 × 1,331.50
  4. Step 4: Simplify right side
    2,791.66x = 5,572,766.90
  5. Step 5: Solve for x
    x = 5,572,766.90/2,791.66
  6. Step 6: Final answer
    x = 1,996.22

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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.