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Finding the Fourth Proportional to 3,067.68, 4,579.28 and 2,839.28

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Solution

The fourth proportional to 3,067.68, 4,579.28 and 2,839.28 is: 4,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.68 : 4,579.28 = 2,839.28 : x
  2. Step 2: Convert to fraction form
    3,067.68/4,579.28 = 2,839.28/x
  3. Step 3: Cross multiply
    3,067.68x = 4,579.28 × 2,839.28
  4. Step 4: Simplify right side
    3,067.68x = 13,001,858.12
  5. Step 5: Solve for x
    x = 13,001,858.12/3,067.68
  6. Step 6: Final answer
    x = 4,238.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.