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Finding the Fourth Proportional to 2,229.85, 3,344.73 and 669.86

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Solution

The fourth proportional to 2,229.85, 3,344.73 and 669.86 is: 1,004.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.85 : 3,344.73 = 669.86 : x
  2. Step 2: Convert to fraction form
    2,229.85/3,344.73 = 669.86/x
  3. Step 3: Cross multiply
    2,229.85x = 3,344.73 × 669.86
  4. Step 4: Simplify right side
    2,229.85x = 2,240,500.84
  5. Step 5: Solve for x
    x = 2,240,500.84/2,229.85
  6. Step 6: Final answer
    x = 1,004.78

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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.