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Finding the Fourth Proportional to 2,666.72, 4,000.08 and 1,367.36

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Solution

The fourth proportional to 2,666.72, 4,000.08 and 1,367.36 is: 2,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.72 : 4,000.08 = 1,367.36 : x
  2. Step 2: Convert to fraction form
    2,666.72/4,000.08 = 1,367.36/x
  3. Step 3: Cross multiply
    2,666.72x = 4,000.08 × 1,367.36
  4. Step 4: Simplify right side
    2,666.72x = 5,469,549.39
  5. Step 5: Solve for x
    x = 5,469,549.39/2,666.72
  6. Step 6: Final answer
    x = 2,051.04

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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.