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Finding the Fourth Proportional to 3,467.52, 5,201.28 and 1,520.16

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Solution

The fourth proportional to 3,467.52, 5,201.28 and 1,520.16 is: 2,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.52 : 5,201.28 = 1,520.16 : x
  2. Step 2: Convert to fraction form
    3,467.52/5,201.28 = 1,520.16/x
  3. Step 3: Cross multiply
    3,467.52x = 5,201.28 × 1,520.16
  4. Step 4: Simplify right side
    3,467.52x = 7,906,777.80
  5. Step 5: Solve for x
    x = 7,906,777.80/3,467.52
  6. Step 6: Final answer
    x = 2,280.24

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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.