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Finding the Fourth Proportional to 3,994.54, 5,512.20 and 2,226.10

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Solution

The fourth proportional to 3,994.54, 5,512.20 and 2,226.10 is: 3,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.54 : 5,512.20 = 2,226.10 : x
  2. Step 2: Convert to fraction form
    3,994.54/5,512.20 = 2,226.10/x
  3. Step 3: Cross multiply
    3,994.54x = 5,512.20 × 2,226.10
  4. Step 4: Simplify right side
    3,994.54x = 12,270,708.42
  5. Step 5: Solve for x
    x = 12,270,708.42/3,994.54
  6. Step 6: Final answer
    x = 3,071.87

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