Home / 5,149.05-7,105.73-2,791.19

Finding the Fourth Proportional to 5,149.05, 7,105.73 and 2,791.19

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Solution

The fourth proportional to 5,149.05, 7,105.73 and 2,791.19 is: 3,851.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.05 : 7,105.73 = 2,791.19 : x
  2. Step 2: Convert to fraction form
    5,149.05/7,105.73 = 2,791.19/x
  3. Step 3: Cross multiply
    5,149.05x = 7,105.73 × 2,791.19
  4. Step 4: Simplify right side
    5,149.05x = 19,833,393.03
  5. Step 5: Solve for x
    x = 19,833,393.03/5,149.05
  6. Step 6: Final answer
    x = 3,851.85

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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.