Home / 3,964.56-5,469.76-2,471.28

Finding the Fourth Proportional to 3,964.56, 5,469.76 and 2,471.28

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Solution

The fourth proportional to 3,964.56, 5,469.76 and 2,471.28 is: 3,409.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.56 : 5,469.76 = 2,471.28 : x
  2. Step 2: Convert to fraction form
    3,964.56/5,469.76 = 2,471.28/x
  3. Step 3: Cross multiply
    3,964.56x = 5,469.76 × 2,471.28
  4. Step 4: Simplify right side
    3,964.56x = 13,517,308.49
  5. Step 5: Solve for x
    x = 13,517,308.49/3,964.56
  6. Step 6: Final answer
    x = 3,409.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.