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Finding the Fourth Proportional to 4,882.80, 6,737.94 and 2,786.88

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Solution

The fourth proportional to 4,882.80, 6,737.94 and 2,786.88 is: 3,845.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,882.80 : 6,737.94 = 2,786.88 : x
  2. Step 2: Convert to fraction form
    4,882.80/6,737.94 = 2,786.88/x
  3. Step 3: Cross multiply
    4,882.80x = 6,737.94 × 2,786.88
  4. Step 4: Simplify right side
    4,882.80x = 18,777,830.23
  5. Step 5: Solve for x
    x = 18,777,830.23/4,882.80
  6. Step 6: Final answer
    x = 3,845.71

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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.