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Finding the Fourth Proportional to 2,224.91, 3,337.90 and 664.85

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Solution

The fourth proportional to 2,224.91, 3,337.90 and 664.85 is: 997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.91 : 3,337.90 = 664.85 : x
  2. Step 2: Convert to fraction form
    2,224.91/3,337.90 = 664.85/x
  3. Step 3: Cross multiply
    2,224.91x = 3,337.90 × 664.85
  4. Step 4: Simplify right side
    2,224.91x = 2,219,202.82
  5. Step 5: Solve for x
    x = 2,219,202.82/2,224.91
  6. Step 6: Final answer
    x = 997.43

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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.