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Finding the Fourth Proportional to 735.84, 1,101.96 and 716.40

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Solution

The fourth proportional to 735.84, 1,101.96 and 716.40 is: 1,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.84 : 1,101.96 = 716.40 : x
  2. Step 2: Convert to fraction form
    735.84/1,101.96 = 716.40/x
  3. Step 3: Cross multiply
    735.84x = 1,101.96 × 716.40
  4. Step 4: Simplify right side
    735.84x = 789,444.14
  5. Step 5: Solve for x
    x = 789,444.14/735.84
  6. Step 6: Final answer
    x = 1,072.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.