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Finding the Fourth Proportional to 2,843.68, 4,238.12 and 2,839.36

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Solution

The fourth proportional to 2,843.68, 4,238.12 and 2,839.36 is: 4,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,843.68 : 4,238.12 = 2,839.36 : x
  2. Step 2: Convert to fraction form
    2,843.68/4,238.12 = 2,839.36/x
  3. Step 3: Cross multiply
    2,843.68x = 4,238.12 × 2,839.36
  4. Step 4: Simplify right side
    2,843.68x = 12,033,548.40
  5. Step 5: Solve for x
    x = 12,033,548.40/2,843.68
  6. Step 6: Final answer
    x = 4,231.68

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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.