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Finding the Fourth Proportional to 3,455.63, 5,183.22 and 1,481.25

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Solution

The fourth proportional to 3,455.63, 5,183.22 and 1,481.25 is: 2,221.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.63 : 5,183.22 = 1,481.25 : x
  2. Step 2: Convert to fraction form
    3,455.63/5,183.22 = 1,481.25/x
  3. Step 3: Cross multiply
    3,455.63x = 5,183.22 × 1,481.25
  4. Step 4: Simplify right side
    3,455.63x = 7,677,644.63
  5. Step 5: Solve for x
    x = 7,677,644.63/3,455.63
  6. Step 6: Final answer
    x = 2,221.78

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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.