Home / 2,761.28-4,142.04-1,029.68

Finding the Fourth Proportional to 2,761.28, 4,142.04 and 1,029.68

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Solution

The fourth proportional to 2,761.28, 4,142.04 and 1,029.68 is: 1,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.28 : 4,142.04 = 1,029.68 : x
  2. Step 2: Convert to fraction form
    2,761.28/4,142.04 = 1,029.68/x
  3. Step 3: Cross multiply
    2,761.28x = 4,142.04 × 1,029.68
  4. Step 4: Simplify right side
    2,761.28x = 4,264,975.75
  5. Step 5: Solve for x
    x = 4,264,975.75/2,761.28
  6. Step 6: Final answer
    x = 1,544.56

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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.