Home / 3,629.88-5,441.58-1,679.40

Finding the Fourth Proportional to 3,629.88, 5,441.58 and 1,679.40

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Solution

The fourth proportional to 3,629.88, 5,441.58 and 1,679.40 is: 2,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.88 : 5,441.58 = 1,679.40 : x
  2. Step 2: Convert to fraction form
    3,629.88/5,441.58 = 1,679.40/x
  3. Step 3: Cross multiply
    3,629.88x = 5,441.58 × 1,679.40
  4. Step 4: Simplify right side
    3,629.88x = 9,138,589.45
  5. Step 5: Solve for x
    x = 9,138,589.45/3,629.88
  6. Step 6: Final answer
    x = 2,517.60

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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.