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Finding the Fourth Proportional to 3,452.72, 5,179.07 and 1,261.44

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Solution

The fourth proportional to 3,452.72, 5,179.07 and 1,261.44 is: 1,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.72 : 5,179.07 = 1,261.44 : x
  2. Step 2: Convert to fraction form
    3,452.72/5,179.07 = 1,261.44/x
  3. Step 3: Cross multiply
    3,452.72x = 5,179.07 × 1,261.44
  4. Step 4: Simplify right side
    3,452.72x = 6,533,089.21
  5. Step 5: Solve for x
    x = 6,533,089.21/3,452.72
  6. Step 6: Final answer
    x = 1,892.16

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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.