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Finding the Fourth Proportional to 2,400.60, 3,597.78 and 1,099.20

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Solution

The fourth proportional to 2,400.60, 3,597.78 and 1,099.20 is: 1,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.60 : 3,597.78 = 1,099.20 : x
  2. Step 2: Convert to fraction form
    2,400.60/3,597.78 = 1,099.20/x
  3. Step 3: Cross multiply
    2,400.60x = 3,597.78 × 1,099.20
  4. Step 4: Simplify right side
    2,400.60x = 3,954,679.78
  5. Step 5: Solve for x
    x = 3,954,679.78/2,400.60
  6. Step 6: Final answer
    x = 1,647.37

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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.