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Finding the Fourth Proportional to 2,311.11, 3,466.64 and 667.64

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Solution

The fourth proportional to 2,311.11, 3,466.64 and 667.64 is: 1,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.11 : 3,466.64 = 667.64 : x
  2. Step 2: Convert to fraction form
    2,311.11/3,466.64 = 667.64/x
  3. Step 3: Cross multiply
    2,311.11x = 3,466.64 × 667.64
  4. Step 4: Simplify right side
    2,311.11x = 2,314,477.87
  5. Step 5: Solve for x
    x = 2,314,477.87/2,311.11
  6. Step 6: Final answer
    x = 1,001.46

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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.