Home / 3,481.12-5,222-1,172.96

Finding the Fourth Proportional to 3,481.12, 5,222 and 1,172.96

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Solution

The fourth proportional to 3,481.12, 5,222 and 1,172.96 is: 1,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.12 : 5,222 = 1,172.96 : x
  2. Step 2: Convert to fraction form
    3,481.12/5,222 = 1,172.96/x
  3. Step 3: Cross multiply
    3,481.12x = 5,222 × 1,172.96
  4. Step 4: Simplify right side
    3,481.12x = 6,125,197.12
  5. Step 5: Solve for x
    x = 6,125,197.12/3,481.12
  6. Step 6: Final answer
    x = 1,759.55

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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.