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Finding the Fourth Proportional to 843.24, 1,260.15 and 796.44

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Solution

The fourth proportional to 843.24, 1,260.15 and 796.44 is: 1,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    843.24 : 1,260.15 = 796.44 : x
  2. Step 2: Convert to fraction form
    843.24/1,260.15 = 796.44/x
  3. Step 3: Cross multiply
    843.24x = 1,260.15 × 796.44
  4. Step 4: Simplify right side
    843.24x = 1,003,633.87
  5. Step 5: Solve for x
    x = 1,003,633.87/843.24
  6. Step 6: Final answer
    x = 1,190.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.