Home / 3,981.88-5,971.44-2,006.75

Finding the Fourth Proportional to 3,981.88, 5,971.44 and 2,006.75

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Solution

The fourth proportional to 3,981.88, 5,971.44 and 2,006.75 is: 3,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.88 : 5,971.44 = 2,006.75 : x
  2. Step 2: Convert to fraction form
    3,981.88/5,971.44 = 2,006.75/x
  3. Step 3: Cross multiply
    3,981.88x = 5,971.44 × 2,006.75
  4. Step 4: Simplify right side
    3,981.88x = 11,983,187.22
  5. Step 5: Solve for x
    x = 11,983,187.22/3,981.88
  6. Step 6: Final answer
    x = 3,009.43

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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.