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Finding the Fourth Proportional to 2,844.88, 4,287.88 and 2,686

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Solution

The fourth proportional to 2,844.88, 4,287.88 and 2,686 is: 4,048.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,844.88 : 4,287.88 = 2,686 : x
  2. Step 2: Convert to fraction form
    2,844.88/4,287.88 = 2,686/x
  3. Step 3: Cross multiply
    2,844.88x = 4,287.88 × 2,686
  4. Step 4: Simplify right side
    2,844.88x = 11,517,245.68
  5. Step 5: Solve for x
    x = 11,517,245.68/2,844.88
  6. Step 6: Final answer
    x = 4,048.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.