Home / 5,192.38-7,791.78-2,728.96

Finding the Fourth Proportional to 5,192.38, 7,791.78 and 2,728.96

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Solution

The fourth proportional to 5,192.38, 7,791.78 and 2,728.96 is: 4,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.38 : 7,791.78 = 2,728.96 : x
  2. Step 2: Convert to fraction form
    5,192.38/7,791.78 = 2,728.96/x
  3. Step 3: Cross multiply
    5,192.38x = 7,791.78 × 2,728.96
  4. Step 4: Simplify right side
    5,192.38x = 21,263,455.95
  5. Step 5: Solve for x
    x = 21,263,455.95/5,192.38
  6. Step 6: Final answer
    x = 4,095.13

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1.5x scale

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.