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Finding the Fourth Proportional to 3,969.60, 5,950.29 and 1,628.61

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Solution

The fourth proportional to 3,969.60, 5,950.29 and 1,628.61 is: 2,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.60 : 5,950.29 = 1,628.61 : x
  2. Step 2: Convert to fraction form
    3,969.60/5,950.29 = 1,628.61/x
  3. Step 3: Cross multiply
    3,969.60x = 5,950.29 × 1,628.61
  4. Step 4: Simplify right side
    3,969.60x = 9,690,701.80
  5. Step 5: Solve for x
    x = 9,690,701.80/3,969.60
  6. Step 6: Final answer
    x = 2,441.23

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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.