Home / 3,961.26-5,945.90-1,988.28

Finding the Fourth Proportional to 3,961.26, 5,945.90 and 1,988.28

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Solution

The fourth proportional to 3,961.26, 5,945.90 and 1,988.28 is: 2,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.26 : 5,945.90 = 1,988.28 : x
  2. Step 2: Convert to fraction form
    3,961.26/5,945.90 = 1,988.28/x
  3. Step 3: Cross multiply
    3,961.26x = 5,945.90 × 1,988.28
  4. Step 4: Simplify right side
    3,961.26x = 11,822,104.11
  5. Step 5: Solve for x
    x = 11,822,104.11/3,961.26
  6. Step 6: Final answer
    x = 2,984.43

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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.