Home / 3,940.04-5,912.14-2,620.56

Finding the Fourth Proportional to 3,940.04, 5,912.14 and 2,620.56

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Solution

The fourth proportional to 3,940.04, 5,912.14 and 2,620.56 is: 3,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.04 : 5,912.14 = 2,620.56 : x
  2. Step 2: Convert to fraction form
    3,940.04/5,912.14 = 2,620.56/x
  3. Step 3: Cross multiply
    3,940.04x = 5,912.14 × 2,620.56
  4. Step 4: Simplify right side
    3,940.04x = 15,493,117.60
  5. Step 5: Solve for x
    x = 15,493,117.60/3,940.04
  6. Step 6: Final answer
    x = 3,932.22

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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.