Home / 3,629.32-5,442.94-1,986.60

Finding the Fourth Proportional to 3,629.32, 5,442.94 and 1,986.60

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Solution

The fourth proportional to 3,629.32, 5,442.94 and 1,986.60 is: 2,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.32 : 5,442.94 = 1,986.60 : x
  2. Step 2: Convert to fraction form
    3,629.32/5,442.94 = 1,986.60/x
  3. Step 3: Cross multiply
    3,629.32x = 5,442.94 × 1,986.60
  4. Step 4: Simplify right side
    3,629.32x = 10,812,944.60
  5. Step 5: Solve for x
    x = 10,812,944.60/3,629.32
  6. Step 6: Final answer
    x = 2,979.33

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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.