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Finding the Fourth Proportional to 2,163.88, 3,245.82 and 603.89

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Solution

The fourth proportional to 2,163.88, 3,245.82 and 603.89 is: 905.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.88 : 3,245.82 = 603.89 : x
  2. Step 2: Convert to fraction form
    2,163.88/3,245.82 = 603.89/x
  3. Step 3: Cross multiply
    2,163.88x = 3,245.82 × 603.89
  4. Step 4: Simplify right side
    2,163.88x = 1,960,098.99
  5. Step 5: Solve for x
    x = 1,960,098.99/2,163.88
  6. Step 6: Final answer
    x = 905.83

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1.5x scale

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.