Home / 3,453.20-5,176.72-1,261.48

Finding the Fourth Proportional to 3,453.20, 5,176.72 and 1,261.48

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Solution

The fourth proportional to 3,453.20, 5,176.72 and 1,261.48 is: 1,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.20 : 5,176.72 = 1,261.48 : x
  2. Step 2: Convert to fraction form
    3,453.20/5,176.72 = 1,261.48/x
  3. Step 3: Cross multiply
    3,453.20x = 5,176.72 × 1,261.48
  4. Step 4: Simplify right side
    3,453.20x = 6,530,328.75
  5. Step 5: Solve for x
    x = 6,530,328.75/3,453.20
  6. Step 6: Final answer
    x = 1,891.09

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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.