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Finding the Fourth Proportional to 4,908.78, 6,770.66 and 3,229.65

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Solution

The fourth proportional to 4,908.78, 6,770.66 and 3,229.65 is: 4,454.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.78 : 6,770.66 = 3,229.65 : x
  2. Step 2: Convert to fraction form
    4,908.78/6,770.66 = 3,229.65/x
  3. Step 3: Cross multiply
    4,908.78x = 6,770.66 × 3,229.65
  4. Step 4: Simplify right side
    4,908.78x = 21,866,870.14
  5. Step 5: Solve for x
    x = 21,866,870.14/4,908.78
  6. Step 6: Final answer
    x = 4,454.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.