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Finding the Fourth Proportional to 2,229.77, 3,344.71 and 669.81

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Solution

The fourth proportional to 2,229.77, 3,344.71 and 669.81 is: 1,004.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.77 : 3,344.71 = 669.81 : x
  2. Step 2: Convert to fraction form
    2,229.77/3,344.71 = 669.81/x
  3. Step 3: Cross multiply
    2,229.77x = 3,344.71 × 669.81
  4. Step 4: Simplify right side
    2,229.77x = 2,240,318.53
  5. Step 5: Solve for x
    x = 2,240,318.53/2,229.77
  6. Step 6: Final answer
    x = 1,004.73

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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.