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Finding the Fourth Proportional to 2,198, 3,295.79 and 900.38

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Solution

The fourth proportional to 2,198, 3,295.79 and 900.38 is: 1,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198 : 3,295.79 = 900.38 : x
  2. Step 2: Convert to fraction form
    2,198/3,295.79 = 900.38/x
  3. Step 3: Cross multiply
    2,198x = 3,295.79 × 900.38
  4. Step 4: Simplify right side
    2,198x = 2,967,463.40
  5. Step 5: Solve for x
    x = 2,967,463.40/2,198
  6. Step 6: Final answer
    x = 1,350.07

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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.