Home / 3,481.25-5,222.70-1,172.75

Finding the Fourth Proportional to 3,481.25, 5,222.70 and 1,172.75

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Solution

The fourth proportional to 3,481.25, 5,222.70 and 1,172.75 is: 1,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.25 : 5,222.70 = 1,172.75 : x
  2. Step 2: Convert to fraction form
    3,481.25/5,222.70 = 1,172.75/x
  3. Step 3: Cross multiply
    3,481.25x = 5,222.70 × 1,172.75
  4. Step 4: Simplify right side
    3,481.25x = 6,124,915.56
  5. Step 5: Solve for x
    x = 6,124,915.56/3,481.25
  6. Step 6: Final answer
    x = 1,759.40

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1.5x scale

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.