Home / 3,972.36-5,481.99-2,179.97

Finding the Fourth Proportional to 3,972.36, 5,481.99 and 2,179.97

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Solution

The fourth proportional to 3,972.36, 5,481.99 and 2,179.97 is: 3,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.36 : 5,481.99 = 2,179.97 : x
  2. Step 2: Convert to fraction form
    3,972.36/5,481.99 = 2,179.97/x
  3. Step 3: Cross multiply
    3,972.36x = 5,481.99 × 2,179.97
  4. Step 4: Simplify right side
    3,972.36x = 11,950,573.74
  5. Step 5: Solve for x
    x = 11,950,573.74/3,972.36
  6. Step 6: Final answer
    x = 3,008.43

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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.