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Finding the Fourth Proportional to 2,179.88, 3,269.84 and 1,083.80

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Solution

The fourth proportional to 2,179.88, 3,269.84 and 1,083.80 is: 1,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.88 : 3,269.84 = 1,083.80 : x
  2. Step 2: Convert to fraction form
    2,179.88/3,269.84 = 1,083.80/x
  3. Step 3: Cross multiply
    2,179.88x = 3,269.84 × 1,083.80
  4. Step 4: Simplify right side
    2,179.88x = 3,543,852.59
  5. Step 5: Solve for x
    x = 3,543,852.59/2,179.88
  6. Step 6: Final answer
    x = 1,625.71

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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.