Home / 5,120.82-7,067.05-2,996.39

Finding the Fourth Proportional to 5,120.82, 7,067.05 and 2,996.39

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Solution

The fourth proportional to 5,120.82, 7,067.05 and 2,996.39 is: 4,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.82 : 7,067.05 = 2,996.39 : x
  2. Step 2: Convert to fraction form
    5,120.82/7,067.05 = 2,996.39/x
  3. Step 3: Cross multiply
    5,120.82x = 7,067.05 × 2,996.39
  4. Step 4: Simplify right side
    5,120.82x = 21,175,648.13
  5. Step 5: Solve for x
    x = 21,175,648.13/5,120.82
  6. Step 6: Final answer
    x = 4,135.21

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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.