Home / 3,512.56-5,269.62-1,321.31

Finding the Fourth Proportional to 3,512.56, 5,269.62 and 1,321.31

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Solution

The fourth proportional to 3,512.56, 5,269.62 and 1,321.31 is: 1,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.56 : 5,269.62 = 1,321.31 : x
  2. Step 2: Convert to fraction form
    3,512.56/5,269.62 = 1,321.31/x
  3. Step 3: Cross multiply
    3,512.56x = 5,269.62 × 1,321.31
  4. Step 4: Simplify right side
    3,512.56x = 6,962,801.60
  5. Step 5: Solve for x
    x = 6,962,801.60/3,512.56
  6. Step 6: Final answer
    x = 1,982.26

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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.