Home / 3,512.89-5,269.52-1,172.80

Finding the Fourth Proportional to 3,512.89, 5,269.52 and 1,172.80

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Solution

The fourth proportional to 3,512.89, 5,269.52 and 1,172.80 is: 1,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.89 : 5,269.52 = 1,172.80 : x
  2. Step 2: Convert to fraction form
    3,512.89/5,269.52 = 1,172.80/x
  3. Step 3: Cross multiply
    3,512.89x = 5,269.52 × 1,172.80
  4. Step 4: Simplify right side
    3,512.89x = 6,180,112.45
  5. Step 5: Solve for x
    x = 6,180,112.45/3,512.89
  6. Step 6: Final answer
    x = 1,759.27

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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.