Home / 3,954.11-5,456.66-2,185.88

Finding the Fourth Proportional to 3,954.11, 5,456.66 and 2,185.88

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Solution

The fourth proportional to 3,954.11, 5,456.66 and 2,185.88 is: 3,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.11 : 5,456.66 = 2,185.88 : x
  2. Step 2: Convert to fraction form
    3,954.11/5,456.66 = 2,185.88/x
  3. Step 3: Cross multiply
    3,954.11x = 5,456.66 × 2,185.88
  4. Step 4: Simplify right side
    3,954.11x = 11,927,565.75
  5. Step 5: Solve for x
    x = 11,927,565.75/3,954.11
  6. Step 6: Final answer
    x = 3,016.50

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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.