Home / 2,760.44-4,140.91-911.56

Finding the Fourth Proportional to 2,760.44, 4,140.91 and 911.56

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Solution

The fourth proportional to 2,760.44, 4,140.91 and 911.56 is: 1,367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.44 : 4,140.91 = 911.56 : x
  2. Step 2: Convert to fraction form
    2,760.44/4,140.91 = 911.56/x
  3. Step 3: Cross multiply
    2,760.44x = 4,140.91 × 911.56
  4. Step 4: Simplify right side
    2,760.44x = 3,774,687.92
  5. Step 5: Solve for x
    x = 3,774,687.92/2,760.44
  6. Step 6: Final answer
    x = 1,367.42

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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.