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Finding the Fourth Proportional to 2,699.84, 4,049.17 and 850.70

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Solution

The fourth proportional to 2,699.84, 4,049.17 and 850.70 is: 1,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.84 : 4,049.17 = 850.70 : x
  2. Step 2: Convert to fraction form
    2,699.84/4,049.17 = 850.70/x
  3. Step 3: Cross multiply
    2,699.84x = 4,049.17 × 850.70
  4. Step 4: Simplify right side
    2,699.84x = 3,444,628.92
  5. Step 5: Solve for x
    x = 3,444,628.92/2,699.84
  6. Step 6: Final answer
    x = 1,275.86

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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.