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Finding the Fourth Proportional to 3,630.52, 5,446.60 and 1,322

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Solution

The fourth proportional to 3,630.52, 5,446.60 and 1,322 is: 1,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.52 : 5,446.60 = 1,322 : x
  2. Step 2: Convert to fraction form
    3,630.52/5,446.60 = 1,322/x
  3. Step 3: Cross multiply
    3,630.52x = 5,446.60 × 1,322
  4. Step 4: Simplify right side
    3,630.52x = 7,200,405.20
  5. Step 5: Solve for x
    x = 7,200,405.20/3,630.52
  6. Step 6: Final answer
    x = 1,983.30

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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.