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Finding the Fourth Proportional to 958.33, 1,323.70 and 865.04

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Solution

The fourth proportional to 958.33, 1,323.70 and 865.04 is: 1,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.33 : 1,323.70 = 865.04 : x
  2. Step 2: Convert to fraction form
    958.33/1,323.70 = 865.04/x
  3. Step 3: Cross multiply
    958.33x = 1,323.70 × 865.04
  4. Step 4: Simplify right side
    958.33x = 1,145,053.45
  5. Step 5: Solve for x
    x = 1,145,053.45/958.33
  6. Step 6: Final answer
    x = 1,194.84

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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.