Home / 5,149.22-7,105.91-2,791.35

Finding the Fourth Proportional to 5,149.22, 7,105.91 and 2,791.35

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Solution

The fourth proportional to 5,149.22, 7,105.91 and 2,791.35 is: 3,852.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.22 : 7,105.91 = 2,791.35 : x
  2. Step 2: Convert to fraction form
    5,149.22/7,105.91 = 2,791.35/x
  3. Step 3: Cross multiply
    5,149.22x = 7,105.91 × 2,791.35
  4. Step 4: Simplify right side
    5,149.22x = 19,835,067.92
  5. Step 5: Solve for x
    x = 19,835,067.92/5,149.22
  6. Step 6: Final answer
    x = 3,852.06

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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.