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Finding the Fourth Proportional to 3,650.60, 5,466.75 and 2,921.60

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Solution

The fourth proportional to 3,650.60, 5,466.75 and 2,921.60 is: 4,375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.60 : 5,466.75 = 2,921.60 : x
  2. Step 2: Convert to fraction form
    3,650.60/5,466.75 = 2,921.60/x
  3. Step 3: Cross multiply
    3,650.60x = 5,466.75 × 2,921.60
  4. Step 4: Simplify right side
    3,650.60x = 15,971,656.80
  5. Step 5: Solve for x
    x = 15,971,656.80/3,650.60
  6. Step 6: Final answer
    x = 4,375.08

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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.