Home / 3,991.45-5,984.19-2,755.33

Finding the Fourth Proportional to 3,991.45, 5,984.19 and 2,755.33

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Solution

The fourth proportional to 3,991.45, 5,984.19 and 2,755.33 is: 4,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.45 : 5,984.19 = 2,755.33 : x
  2. Step 2: Convert to fraction form
    3,991.45/5,984.19 = 2,755.33/x
  3. Step 3: Cross multiply
    3,991.45x = 5,984.19 × 2,755.33
  4. Step 4: Simplify right side
    3,991.45x = 16,488,418.23
  5. Step 5: Solve for x
    x = 16,488,418.23/3,991.45
  6. Step 6: Final answer
    x = 4,130.93

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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.