Home / 2,198.02-3,296.68-812.01

Finding the Fourth Proportional to 2,198.02, 3,296.68 and 812.01

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Solution

The fourth proportional to 2,198.02, 3,296.68 and 812.01 is: 1,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.02 : 3,296.68 = 812.01 : x
  2. Step 2: Convert to fraction form
    2,198.02/3,296.68 = 812.01/x
  3. Step 3: Cross multiply
    2,198.02x = 3,296.68 × 812.01
  4. Step 4: Simplify right side
    2,198.02x = 2,676,937.13
  5. Step 5: Solve for x
    x = 2,676,937.13/2,198.02
  6. Step 6: Final answer
    x = 1,217.89

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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.