Home / 2,163.30-3,245.39-603.75

Finding the Fourth Proportional to 2,163.30, 3,245.39 and 603.75

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Solution

The fourth proportional to 2,163.30, 3,245.39 and 603.75 is: 905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.30 : 3,245.39 = 603.75 : x
  2. Step 2: Convert to fraction form
    2,163.30/3,245.39 = 603.75/x
  3. Step 3: Cross multiply
    2,163.30x = 3,245.39 × 603.75
  4. Step 4: Simplify right side
    2,163.30x = 1,959,412.85
  5. Step 5: Solve for x
    x = 1,959,412.85/2,163.30
  6. Step 6: Final answer
    x = 905.75

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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.