Home / 5,149.38-7,106.15-2,791.54

Finding the Fourth Proportional to 5,149.38, 7,106.15 and 2,791.54

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Solution

The fourth proportional to 5,149.38, 7,106.15 and 2,791.54 is: 3,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.38 : 7,106.15 = 2,791.54 : x
  2. Step 2: Convert to fraction form
    5,149.38/7,106.15 = 2,791.54/x
  3. Step 3: Cross multiply
    5,149.38x = 7,106.15 × 2,791.54
  4. Step 4: Simplify right side
    5,149.38x = 19,837,101.97
  5. Step 5: Solve for x
    x = 19,837,101.97/5,149.38
  6. Step 6: Final answer
    x = 3,852.33

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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.