Home / 2,760.72-4,138.44-1,028.94

Finding the Fourth Proportional to 2,760.72, 4,138.44 and 1,028.94

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Solution

The fourth proportional to 2,760.72, 4,138.44 and 1,028.94 is: 1,542.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.72 : 4,138.44 = 1,028.94 : x
  2. Step 2: Convert to fraction form
    2,760.72/4,138.44 = 1,028.94/x
  3. Step 3: Cross multiply
    2,760.72x = 4,138.44 × 1,028.94
  4. Step 4: Simplify right side
    2,760.72x = 4,258,206.45
  5. Step 5: Solve for x
    x = 4,258,206.45/2,760.72
  6. Step 6: Final answer
    x = 1,542.43

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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.