Home / 3,971.11-5,954.94-2,121.82

Finding the Fourth Proportional to 3,971.11, 5,954.94 and 2,121.82

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Solution

The fourth proportional to 3,971.11, 5,954.94 and 2,121.82 is: 3,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.11 : 5,954.94 = 2,121.82 : x
  2. Step 2: Convert to fraction form
    3,971.11/5,954.94 = 2,121.82/x
  3. Step 3: Cross multiply
    3,971.11x = 5,954.94 × 2,121.82
  4. Step 4: Simplify right side
    3,971.11x = 12,635,310.79
  5. Step 5: Solve for x
    x = 12,635,310.79/3,971.11
  6. Step 6: Final answer
    x = 3,181.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.