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Finding the Fourth Proportional to 2,271, 3,408.06 and 1,231.32

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Solution

The fourth proportional to 2,271, 3,408.06 and 1,231.32 is: 1,847.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271 : 3,408.06 = 1,231.32 : x
  2. Step 2: Convert to fraction form
    2,271/3,408.06 = 1,231.32/x
  3. Step 3: Cross multiply
    2,271x = 3,408.06 × 1,231.32
  4. Step 4: Simplify right side
    2,271x = 4,196,412.44
  5. Step 5: Solve for x
    x = 4,196,412.44/2,271
  6. Step 6: Final answer
    x = 1,847.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.