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Finding the Fourth Proportional to 3,764.36, 5,640.24 and 2,663.30

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Solution

The fourth proportional to 3,764.36, 5,640.24 and 2,663.30 is: 3,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.36 : 5,640.24 = 2,663.30 : x
  2. Step 2: Convert to fraction form
    3,764.36/5,640.24 = 2,663.30/x
  3. Step 3: Cross multiply
    3,764.36x = 5,640.24 × 2,663.30
  4. Step 4: Simplify right side
    3,764.36x = 15,021,651.19
  5. Step 5: Solve for x
    x = 15,021,651.19/3,764.36
  6. Step 6: Final answer
    x = 3,990.49

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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.