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Finding the Fourth Proportional to 3,229, 4,455.46 and 1,902.60

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Solution

The fourth proportional to 3,229, 4,455.46 and 1,902.60 is: 2,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229 : 4,455.46 = 1,902.60 : x
  2. Step 2: Convert to fraction form
    3,229/4,455.46 = 1,902.60/x
  3. Step 3: Cross multiply
    3,229x = 4,455.46 × 1,902.60
  4. Step 4: Simplify right side
    3,229x = 8,476,958.20
  5. Step 5: Solve for x
    x = 8,476,958.20/3,229
  6. Step 6: Final answer
    x = 2,625.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.