Home / 3,629.25-5,446.28-1,986.95

Finding the Fourth Proportional to 3,629.25, 5,446.28 and 1,986.95

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Solution

The fourth proportional to 3,629.25, 5,446.28 and 1,986.95 is: 2,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.25 : 5,446.28 = 1,986.95 : x
  2. Step 2: Convert to fraction form
    3,629.25/5,446.28 = 1,986.95/x
  3. Step 3: Cross multiply
    3,629.25x = 5,446.28 × 1,986.95
  4. Step 4: Simplify right side
    3,629.25x = 10,821,504.63
  5. Step 5: Solve for x
    x = 10,821,504.63/3,629.25
  6. Step 6: Final answer
    x = 2,981.75

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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.