Home / 1,791.97-2,685.52-1,331.49

Finding the Fourth Proportional to 1,791.97, 2,685.52 and 1,331.49

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Solution

The fourth proportional to 1,791.97, 2,685.52 and 1,331.49 is: 1,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.97 : 2,685.52 = 1,331.49 : x
  2. Step 2: Convert to fraction form
    1,791.97/2,685.52 = 1,331.49/x
  3. Step 3: Cross multiply
    1,791.97x = 2,685.52 × 1,331.49
  4. Step 4: Simplify right side
    1,791.97x = 3,575,743.02
  5. Step 5: Solve for x
    x = 3,575,743.02/1,791.97
  6. Step 6: Final answer
    x = 1,995.43

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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.