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Finding the Fourth Proportional to 735.12, 1,096.97 and 657.22

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Solution

The fourth proportional to 735.12, 1,096.97 and 657.22 is: 980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.12 : 1,096.97 = 657.22 : x
  2. Step 2: Convert to fraction form
    735.12/1,096.97 = 657.22/x
  3. Step 3: Cross multiply
    735.12x = 1,096.97 × 657.22
  4. Step 4: Simplify right side
    735.12x = 720,950.62
  5. Step 5: Solve for x
    x = 720,950.62/735.12
  6. Step 6: Final answer
    x = 980.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.