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Finding the Fourth Proportional to 3,108.87, 4,662.12 and 1,028.52

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Solution

The fourth proportional to 3,108.87, 4,662.12 and 1,028.52 is: 1,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.87 : 4,662.12 = 1,028.52 : x
  2. Step 2: Convert to fraction form
    3,108.87/4,662.12 = 1,028.52/x
  3. Step 3: Cross multiply
    3,108.87x = 4,662.12 × 1,028.52
  4. Step 4: Simplify right side
    3,108.87x = 4,795,083.66
  5. Step 5: Solve for x
    x = 4,795,083.66/3,108.87
  6. Step 6: Final answer
    x = 1,542.39

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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.