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Finding the Fourth Proportional to 2,148.43, 3,223.73 and 850.99

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Solution

The fourth proportional to 2,148.43, 3,223.73 and 850.99 is: 1,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.43 : 3,223.73 = 850.99 : x
  2. Step 2: Convert to fraction form
    2,148.43/3,223.73 = 850.99/x
  3. Step 3: Cross multiply
    2,148.43x = 3,223.73 × 850.99
  4. Step 4: Simplify right side
    2,148.43x = 2,743,361.99
  5. Step 5: Solve for x
    x = 2,743,361.99/2,148.43
  6. Step 6: Final answer
    x = 1,276.91

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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.