Home / 3,940.27-5,912.20-1,475.28

Finding the Fourth Proportional to 3,940.27, 5,912.20 and 1,475.28

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Solution

The fourth proportional to 3,940.27, 5,912.20 and 1,475.28 is: 2,213.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.27 : 5,912.20 = 1,475.28 : x
  2. Step 2: Convert to fraction form
    3,940.27/5,912.20 = 1,475.28/x
  3. Step 3: Cross multiply
    3,940.27x = 5,912.20 × 1,475.28
  4. Step 4: Simplify right side
    3,940.27x = 8,722,150.42
  5. Step 5: Solve for x
    x = 8,722,150.42/3,940.27
  6. Step 6: Final answer
    x = 2,213.59

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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.