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Finding the Fourth Proportional to 2,226.53, 3,340.94 and 994.74

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Solution

The fourth proportional to 2,226.53, 3,340.94 and 994.74 is: 1,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.53 : 3,340.94 = 994.74 : x
  2. Step 2: Convert to fraction form
    2,226.53/3,340.94 = 994.74/x
  3. Step 3: Cross multiply
    2,226.53x = 3,340.94 × 994.74
  4. Step 4: Simplify right side
    2,226.53x = 3,323,361.68
  5. Step 5: Solve for x
    x = 3,323,361.68/2,226.53
  6. Step 6: Final answer
    x = 1,492.62

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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.