Home / 3,969.20-5,956.48-1,629.62

Finding the Fourth Proportional to 3,969.20, 5,956.48 and 1,629.62

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Solution

The fourth proportional to 3,969.20, 5,956.48 and 1,629.62 is: 2,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.20 : 5,956.48 = 1,629.62 : x
  2. Step 2: Convert to fraction form
    3,969.20/5,956.48 = 1,629.62/x
  3. Step 3: Cross multiply
    3,969.20x = 5,956.48 × 1,629.62
  4. Step 4: Simplify right side
    3,969.20x = 9,706,798.94
  5. Step 5: Solve for x
    x = 9,706,798.94/3,969.20
  6. Step 6: Final answer
    x = 2,445.53

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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.