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Finding the Fourth Proportional to 3,826.72, 5,738.64 and 1,634.32

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Solution

The fourth proportional to 3,826.72, 5,738.64 and 1,634.32 is: 2,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.72 : 5,738.64 = 1,634.32 : x
  2. Step 2: Convert to fraction form
    3,826.72/5,738.64 = 1,634.32/x
  3. Step 3: Cross multiply
    3,826.72x = 5,738.64 × 1,634.32
  4. Step 4: Simplify right side
    3,826.72x = 9,378,774.12
  5. Step 5: Solve for x
    x = 9,378,774.12/3,826.72
  6. Step 6: Final answer
    x = 2,450.87

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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.