Home / 1,791.33-2,472.05-1,005.38

Finding the Fourth Proportional to 1,791.33, 2,472.05 and 1,005.38

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Solution

The fourth proportional to 1,791.33, 2,472.05 and 1,005.38 is: 1,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.33 : 2,472.05 = 1,005.38 : x
  2. Step 2: Convert to fraction form
    1,791.33/2,472.05 = 1,005.38/x
  3. Step 3: Cross multiply
    1,791.33x = 2,472.05 × 1,005.38
  4. Step 4: Simplify right side
    1,791.33x = 2,485,350.78
  5. Step 5: Solve for x
    x = 2,485,350.78/1,791.33
  6. Step 6: Final answer
    x = 1,387.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.