Home / 3,940.33-5,912.19-1,474.84

Finding the Fourth Proportional to 3,940.33, 5,912.19 and 1,474.84

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Solution

The fourth proportional to 3,940.33, 5,912.19 and 1,474.84 is: 2,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.33 : 5,912.19 = 1,474.84 : x
  2. Step 2: Convert to fraction form
    3,940.33/5,912.19 = 1,474.84/x
  3. Step 3: Cross multiply
    3,940.33x = 5,912.19 × 1,474.84
  4. Step 4: Simplify right side
    3,940.33x = 8,719,534.30
  5. Step 5: Solve for x
    x = 8,719,534.30/3,940.33
  6. Step 6: Final answer
    x = 2,212.89

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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.