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Finding the Fourth Proportional to 735.21, 1,101.87 and 551.16

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Solution

The fourth proportional to 735.21, 1,101.87 and 551.16 is: 826.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.21 : 1,101.87 = 551.16 : x
  2. Step 2: Convert to fraction form
    735.21/1,101.87 = 551.16/x
  3. Step 3: Cross multiply
    735.21x = 1,101.87 × 551.16
  4. Step 4: Simplify right side
    735.21x = 607,306.67
  5. Step 5: Solve for x
    x = 607,306.67/735.21
  6. Step 6: Final answer
    x = 826.03

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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.