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Finding the Fourth Proportional to 845.11, 1,167.05 and 799.09

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Solution

The fourth proportional to 845.11, 1,167.05 and 799.09 is: 1,103.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.11 : 1,167.05 = 799.09 : x
  2. Step 2: Convert to fraction form
    845.11/1,167.05 = 799.09/x
  3. Step 3: Cross multiply
    845.11x = 1,167.05 × 799.09
  4. Step 4: Simplify right side
    845.11x = 932,572.15
  5. Step 5: Solve for x
    x = 932,572.15/845.11
  6. Step 6: Final answer
    x = 1,103.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.