Home / 2,791.23-4,186.73-1,147.73

Finding the Fourth Proportional to 2,791.23, 4,186.73 and 1,147.73

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Solution

The fourth proportional to 2,791.23, 4,186.73 and 1,147.73 is: 1,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.23 : 4,186.73 = 1,147.73 : x
  2. Step 2: Convert to fraction form
    2,791.23/4,186.73 = 1,147.73/x
  3. Step 3: Cross multiply
    2,791.23x = 4,186.73 × 1,147.73
  4. Step 4: Simplify right side
    2,791.23x = 4,805,235.62
  5. Step 5: Solve for x
    x = 4,805,235.62/2,791.23
  6. Step 6: Final answer
    x = 1,721.55

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1.5x scale

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.