Home / 3,954.12-5,456.22-2,185.50

Finding the Fourth Proportional to 3,954.12, 5,456.22 and 2,185.50

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Solution

The fourth proportional to 3,954.12, 5,456.22 and 2,185.50 is: 3,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.12 : 5,456.22 = 2,185.50 : x
  2. Step 2: Convert to fraction form
    3,954.12/5,456.22 = 2,185.50/x
  3. Step 3: Cross multiply
    3,954.12x = 5,456.22 × 2,185.50
  4. Step 4: Simplify right side
    3,954.12x = 11,924,568.81
  5. Step 5: Solve for x
    x = 11,924,568.81/3,954.12
  6. Step 6: Final answer
    x = 3,015.73

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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.