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Finding the Fourth Proportional to 837.21, 1,246.97 and 793.29

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Solution

The fourth proportional to 837.21, 1,246.97 and 793.29 is: 1,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.21 : 1,246.97 = 793.29 : x
  2. Step 2: Convert to fraction form
    837.21/1,246.97 = 793.29/x
  3. Step 3: Cross multiply
    837.21x = 1,246.97 × 793.29
  4. Step 4: Simplify right side
    837.21x = 989,204.86
  5. Step 5: Solve for x
    x = 989,204.86/837.21
  6. Step 6: Final answer
    x = 1,181.55

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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.