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Finding the Fourth Proportional to 4,687.88, 6,469.88 and 2,698.11

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Solution

The fourth proportional to 4,687.88, 6,469.88 and 2,698.11 is: 3,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.88 : 6,469.88 = 2,698.11 : x
  2. Step 2: Convert to fraction form
    4,687.88/6,469.88 = 2,698.11/x
  3. Step 3: Cross multiply
    4,687.88x = 6,469.88 × 2,698.11
  4. Step 4: Simplify right side
    4,687.88x = 17,456,434.44
  5. Step 5: Solve for x
    x = 17,456,434.44/4,687.88
  6. Step 6: Final answer
    x = 3,723.74

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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.