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Finding the Fourth Proportional to 3,805.36, 5,249.64 and 2,964.64

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Solution

The fourth proportional to 3,805.36, 5,249.64 and 2,964.64 is: 4,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.36 : 5,249.64 = 2,964.64 : x
  2. Step 2: Convert to fraction form
    3,805.36/5,249.64 = 2,964.64/x
  3. Step 3: Cross multiply
    3,805.36x = 5,249.64 × 2,964.64
  4. Step 4: Simplify right side
    3,805.36x = 15,563,292.73
  5. Step 5: Solve for x
    x = 15,563,292.73/3,805.36
  6. Step 6: Final answer
    x = 4,089.83

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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.