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Finding the Fourth Proportional to 2,798.75, 4,198.57 and 950.02

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Solution

The fourth proportional to 2,798.75, 4,198.57 and 950.02 is: 1,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.75 : 4,198.57 = 950.02 : x
  2. Step 2: Convert to fraction form
    2,798.75/4,198.57 = 950.02/x
  3. Step 3: Cross multiply
    2,798.75x = 4,198.57 × 950.02
  4. Step 4: Simplify right side
    2,798.75x = 3,988,727.85
  5. Step 5: Solve for x
    x = 3,988,727.85/2,798.75
  6. Step 6: Final answer
    x = 1,425.18

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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.