Home / 3,825.15-5,724.36-3,311.21

Finding the Fourth Proportional to 3,825.15, 5,724.36 and 3,311.21

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Solution

The fourth proportional to 3,825.15, 5,724.36 and 3,311.21 is: 4,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.15 : 5,724.36 = 3,311.21 : x
  2. Step 2: Convert to fraction form
    3,825.15/5,724.36 = 3,311.21/x
  3. Step 3: Cross multiply
    3,825.15x = 5,724.36 × 3,311.21
  4. Step 4: Simplify right side
    3,825.15x = 18,954,558.08
  5. Step 5: Solve for x
    x = 18,954,558.08/3,825.15
  6. Step 6: Final answer
    x = 4,955.25

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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.