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Finding the Fourth Proportional to 2,179.43, 3,269.07 and 535.94

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Solution

The fourth proportional to 2,179.43, 3,269.07 and 535.94 is: 803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.43 : 3,269.07 = 535.94 : x
  2. Step 2: Convert to fraction form
    2,179.43/3,269.07 = 535.94/x
  3. Step 3: Cross multiply
    2,179.43x = 3,269.07 × 535.94
  4. Step 4: Simplify right side
    2,179.43x = 1,752,025.38
  5. Step 5: Solve for x
    x = 1,752,025.38/2,179.43
  6. Step 6: Final answer
    x = 803.89

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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.