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Finding the Fourth Proportional to 2,163.56, 3,245.22 and 624.56

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Solution

The fourth proportional to 2,163.56, 3,245.22 and 624.56 is: 936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.56 : 3,245.22 = 624.56 : x
  2. Step 2: Convert to fraction form
    2,163.56/3,245.22 = 624.56/x
  3. Step 3: Cross multiply
    2,163.56x = 3,245.22 × 624.56
  4. Step 4: Simplify right side
    2,163.56x = 2,026,834.60
  5. Step 5: Solve for x
    x = 2,026,834.60/2,163.56
  6. Step 6: Final answer
    x = 936.81

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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.