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Finding the Fourth Proportional to 2,224.37, 3,336.58 and 664.40

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Solution

The fourth proportional to 2,224.37, 3,336.58 and 664.40 is: 996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.37 : 3,336.58 = 664.40 : x
  2. Step 2: Convert to fraction form
    2,224.37/3,336.58 = 664.40/x
  3. Step 3: Cross multiply
    2,224.37x = 3,336.58 × 664.40
  4. Step 4: Simplify right side
    2,224.37x = 2,216,832.92
  5. Step 5: Solve for x
    x = 2,216,832.92/2,224.37
  6. Step 6: Final answer
    x = 996.61

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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.