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Finding the Fourth Proportional to 2,163.18, 3,244.89 and 603.19

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Solution

The fourth proportional to 2,163.18, 3,244.89 and 603.19 is: 904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.18 : 3,244.89 = 603.19 : x
  2. Step 2: Convert to fraction form
    2,163.18/3,244.89 = 603.19/x
  3. Step 3: Cross multiply
    2,163.18x = 3,244.89 × 603.19
  4. Step 4: Simplify right side
    2,163.18x = 1,957,268.97
  5. Step 5: Solve for x
    x = 1,957,268.97/2,163.18
  6. Step 6: Final answer
    x = 904.81

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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.