Home / 3,961.88-5,940.75-2,112.49

Finding the Fourth Proportional to 3,961.88, 5,940.75 and 2,112.49

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Solution

The fourth proportional to 3,961.88, 5,940.75 and 2,112.49 is: 3,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.88 : 5,940.75 = 2,112.49 : x
  2. Step 2: Convert to fraction form
    3,961.88/5,940.75 = 2,112.49/x
  3. Step 3: Cross multiply
    3,961.88x = 5,940.75 × 2,112.49
  4. Step 4: Simplify right side
    3,961.88x = 12,549,790.32
  5. Step 5: Solve for x
    x = 12,549,790.32/3,961.88
  6. Step 6: Final answer
    x = 3,167.64

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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.