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Finding the Fourth Proportional to 893.96, 1,233.96 and 544.64

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Solution

The fourth proportional to 893.96, 1,233.96 and 544.64 is: 751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.96 : 1,233.96 = 544.64 : x
  2. Step 2: Convert to fraction form
    893.96/1,233.96 = 544.64/x
  3. Step 3: Cross multiply
    893.96x = 1,233.96 × 544.64
  4. Step 4: Simplify right side
    893.96x = 672,063.97
  5. Step 5: Solve for x
    x = 672,063.97/893.96
  6. Step 6: Final answer
    x = 751.78

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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.