Home / 3,948.80-5,918.88-2,791.04

Finding the Fourth Proportional to 3,948.80, 5,918.88 and 2,791.04

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Solution

The fourth proportional to 3,948.80, 5,918.88 and 2,791.04 is: 4,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.80 : 5,918.88 = 2,791.04 : x
  2. Step 2: Convert to fraction form
    3,948.80/5,918.88 = 2,791.04/x
  3. Step 3: Cross multiply
    3,948.80x = 5,918.88 × 2,791.04
  4. Step 4: Simplify right side
    3,948.80x = 16,519,830.84
  5. Step 5: Solve for x
    x = 16,519,830.84/3,948.80
  6. Step 6: Final answer
    x = 4,183.51

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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.