Home / 2,759.28-4,138.96-1,027.60

Finding the Fourth Proportional to 2,759.28, 4,138.96 and 1,027.60

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Solution

The fourth proportional to 2,759.28, 4,138.96 and 1,027.60 is: 1,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.28 : 4,138.96 = 1,027.60 : x
  2. Step 2: Convert to fraction form
    2,759.28/4,138.96 = 1,027.60/x
  3. Step 3: Cross multiply
    2,759.28x = 4,138.96 × 1,027.60
  4. Step 4: Simplify right side
    2,759.28x = 4,253,195.30
  5. Step 5: Solve for x
    x = 4,253,195.30/2,759.28
  6. Step 6: Final answer
    x = 1,541.41

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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.