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Finding the Fourth Proportional to 958.92, 1,326.92 and 818.82

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Solution

The fourth proportional to 958.92, 1,326.92 and 818.82 is: 1,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.92 : 1,326.92 = 818.82 : x
  2. Step 2: Convert to fraction form
    958.92/1,326.92 = 818.82/x
  3. Step 3: Cross multiply
    958.92x = 1,326.92 × 818.82
  4. Step 4: Simplify right side
    958.92x = 1,086,508.63
  5. Step 5: Solve for x
    x = 1,086,508.63/958.92
  6. Step 6: Final answer
    x = 1,133.05

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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.