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Finding the Fourth Proportional to 1,793.09, 2,687.19 and 817.04

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Solution

The fourth proportional to 1,793.09, 2,687.19 and 817.04 is: 1,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793.09 : 2,687.19 = 817.04 : x
  2. Step 2: Convert to fraction form
    1,793.09/2,687.19 = 817.04/x
  3. Step 3: Cross multiply
    1,793.09x = 2,687.19 × 817.04
  4. Step 4: Simplify right side
    1,793.09x = 2,195,528.28
  5. Step 5: Solve for x
    x = 2,195,528.28/1,793.09
  6. Step 6: Final answer
    x = 1,224.44

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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.