Home / 3,771.20-5,629.92-3,187.84

Finding the Fourth Proportional to 3,771.20, 5,629.92 and 3,187.84

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Solution

The fourth proportional to 3,771.20, 5,629.92 and 3,187.84 is: 4,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.20 : 5,629.92 = 3,187.84 : x
  2. Step 2: Convert to fraction form
    3,771.20/5,629.92 = 3,187.84/x
  3. Step 3: Cross multiply
    3,771.20x = 5,629.92 × 3,187.84
  4. Step 4: Simplify right side
    3,771.20x = 17,947,284.17
  5. Step 5: Solve for x
    x = 17,947,284.17/3,771.20
  6. Step 6: Final answer
    x = 4,759.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.