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Finding the Fourth Proportional to 3,179.94, 4,763.75 and 1,789.05

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Solution

The fourth proportional to 3,179.94, 4,763.75 and 1,789.05 is: 2,680.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.94 : 4,763.75 = 1,789.05 : x
  2. Step 2: Convert to fraction form
    3,179.94/4,763.75 = 1,789.05/x
  3. Step 3: Cross multiply
    3,179.94x = 4,763.75 × 1,789.05
  4. Step 4: Simplify right side
    3,179.94x = 8,522,586.94
  5. Step 5: Solve for x
    x = 8,522,586.94/3,179.94
  6. Step 6: Final answer
    x = 2,680.11

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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.