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Finding the Fourth Proportional to 1,481.03, 2,221.41 and 603.62

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Solution

The fourth proportional to 1,481.03, 2,221.41 and 603.62 is: 905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.03 : 2,221.41 = 603.62 : x
  2. Step 2: Convert to fraction form
    1,481.03/2,221.41 = 603.62/x
  3. Step 3: Cross multiply
    1,481.03x = 2,221.41 × 603.62
  4. Step 4: Simplify right side
    1,481.03x = 1,340,894.57
  5. Step 5: Solve for x
    x = 1,340,894.57/1,481.03
  6. Step 6: Final answer
    x = 905.38

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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.