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Finding the Fourth Proportional to 1,899.46, 2,849.49 and 803.83

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Solution

The fourth proportional to 1,899.46, 2,849.49 and 803.83 is: 1,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.46 : 2,849.49 = 803.83 : x
  2. Step 2: Convert to fraction form
    1,899.46/2,849.49 = 803.83/x
  3. Step 3: Cross multiply
    1,899.46x = 2,849.49 × 803.83
  4. Step 4: Simplify right side
    1,899.46x = 2,290,505.55
  5. Step 5: Solve for x
    x = 2,290,505.55/1,899.46
  6. Step 6: Final answer
    x = 1,205.87

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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.