Home / 2,791.22-4,186.73-843.38

Finding the Fourth Proportional to 2,791.22, 4,186.73 and 843.38

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Solution

The fourth proportional to 2,791.22, 4,186.73 and 843.38 is: 1,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.22 : 4,186.73 = 843.38 : x
  2. Step 2: Convert to fraction form
    2,791.22/4,186.73 = 843.38/x
  3. Step 3: Cross multiply
    2,791.22x = 4,186.73 × 843.38
  4. Step 4: Simplify right side
    2,791.22x = 3,530,985.52
  5. Step 5: Solve for x
    x = 3,530,985.52/2,791.22
  6. Step 6: Final answer
    x = 1,265.03

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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.