Home / 3,947.67-5,447.99-2,179.24

Finding the Fourth Proportional to 3,947.67, 5,447.99 and 2,179.24

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Solution

The fourth proportional to 3,947.67, 5,447.99 and 2,179.24 is: 3,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.67 : 5,447.99 = 2,179.24 : x
  2. Step 2: Convert to fraction form
    3,947.67/5,447.99 = 2,179.24/x
  3. Step 3: Cross multiply
    3,947.67x = 5,447.99 × 2,179.24
  4. Step 4: Simplify right side
    3,947.67x = 11,872,469.56
  5. Step 5: Solve for x
    x = 11,872,469.56/3,947.67
  6. Step 6: Final answer
    x = 3,007.46

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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.