Home / 3,943.40-5,441.83-2,174.97

Finding the Fourth Proportional to 3,943.40, 5,441.83 and 2,174.97

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Solution

The fourth proportional to 3,943.40, 5,441.83 and 2,174.97 is: 3,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.40 : 5,441.83 = 2,174.97 : x
  2. Step 2: Convert to fraction form
    3,943.40/5,441.83 = 2,174.97/x
  3. Step 3: Cross multiply
    3,943.40x = 5,441.83 × 2,174.97
  4. Step 4: Simplify right side
    3,943.40x = 11,835,811.56
  5. Step 5: Solve for x
    x = 11,835,811.56/3,943.40
  6. Step 6: Final answer
    x = 3,001.42

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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.