Home / 4,922.62-6,791.50-3,155.20

Finding the Fourth Proportional to 4,922.62, 6,791.50 and 3,155.20

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Solution

The fourth proportional to 4,922.62, 6,791.50 and 3,155.20 is: 4,353.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.62 : 6,791.50 = 3,155.20 : x
  2. Step 2: Convert to fraction form
    4,922.62/6,791.50 = 3,155.20/x
  3. Step 3: Cross multiply
    4,922.62x = 6,791.50 × 3,155.20
  4. Step 4: Simplify right side
    4,922.62x = 21,428,540.80
  5. Step 5: Solve for x
    x = 21,428,540.80/4,922.62
  6. Step 6: Final answer
    x = 4,353.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.