Home / 4,989.09-7,470.24-2,791.56

Finding the Fourth Proportional to 4,989.09, 7,470.24 and 2,791.56

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Solution

The fourth proportional to 4,989.09, 7,470.24 and 2,791.56 is: 4,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.09 : 7,470.24 = 2,791.56 : x
  2. Step 2: Convert to fraction form
    4,989.09/7,470.24 = 2,791.56/x
  3. Step 3: Cross multiply
    4,989.09x = 7,470.24 × 2,791.56
  4. Step 4: Simplify right side
    4,989.09x = 20,853,623.17
  5. Step 5: Solve for x
    x = 20,853,623.17/4,989.09
  6. Step 6: Final answer
    x = 4,179.85

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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.