Home / 3,629.78-5,441.44-1,289.47

Finding the Fourth Proportional to 3,629.78, 5,441.44 and 1,289.47

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Solution

The fourth proportional to 3,629.78, 5,441.44 and 1,289.47 is: 1,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.78 : 5,441.44 = 1,289.47 : x
  2. Step 2: Convert to fraction form
    3,629.78/5,441.44 = 1,289.47/x
  3. Step 3: Cross multiply
    3,629.78x = 5,441.44 × 1,289.47
  4. Step 4: Simplify right side
    3,629.78x = 7,016,584.73
  5. Step 5: Solve for x
    x = 7,016,584.73/3,629.78
  6. Step 6: Final answer
    x = 1,933.06

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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.