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Finding the Fourth Proportional to 1,794.03, 2,694.02 and 1,212.80

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Solution

The fourth proportional to 1,794.03, 2,694.02 and 1,212.80 is: 1,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.03 : 2,694.02 = 1,212.80 : x
  2. Step 2: Convert to fraction form
    1,794.03/2,694.02 = 1,212.80/x
  3. Step 3: Cross multiply
    1,794.03x = 2,694.02 × 1,212.80
  4. Step 4: Simplify right side
    1,794.03x = 3,267,287.92
  5. Step 5: Solve for x
    x = 3,267,287.92/1,794.03
  6. Step 6: Final answer
    x = 1,821.20

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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.