Home / 3,469.75-5,204.69-1,129.75

Finding the Fourth Proportional to 3,469.75, 5,204.69 and 1,129.75

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Solution

The fourth proportional to 3,469.75, 5,204.69 and 1,129.75 is: 1,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.75 : 5,204.69 = 1,129.75 : x
  2. Step 2: Convert to fraction form
    3,469.75/5,204.69 = 1,129.75/x
  3. Step 3: Cross multiply
    3,469.75x = 5,204.69 × 1,129.75
  4. Step 4: Simplify right side
    3,469.75x = 5,879,972.50
  5. Step 5: Solve for x
    x = 5,879,972.50/3,469.75
  6. Step 6: Final answer
    x = 1,694.64

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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.