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Finding the Fourth Proportional to 958.11, 1,324.40 and 799.82

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Solution

The fourth proportional to 958.11, 1,324.40 and 799.82 is: 1,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.11 : 1,324.40 = 799.82 : x
  2. Step 2: Convert to fraction form
    958.11/1,324.40 = 799.82/x
  3. Step 3: Cross multiply
    958.11x = 1,324.40 × 799.82
  4. Step 4: Simplify right side
    958.11x = 1,059,281.61
  5. Step 5: Solve for x
    x = 1,059,281.61/958.11
  6. Step 6: Final answer
    x = 1,105.59

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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.