Home / 2,912.28-4,020.24-2,027.76

Finding the Fourth Proportional to 2,912.28, 4,020.24 and 2,027.76

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Solution

The fourth proportional to 2,912.28, 4,020.24 and 2,027.76 is: 2,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.28 : 4,020.24 = 2,027.76 : x
  2. Step 2: Convert to fraction form
    2,912.28/4,020.24 = 2,027.76/x
  3. Step 3: Cross multiply
    2,912.28x = 4,020.24 × 2,027.76
  4. Step 4: Simplify right side
    2,912.28x = 8,152,081.86
  5. Step 5: Solve for x
    x = 8,152,081.86/2,912.28
  6. Step 6: Final answer
    x = 2,799.21

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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.