Home / 3,865.37-5,334.09-2,163.88

Finding the Fourth Proportional to 3,865.37, 5,334.09 and 2,163.88

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Solution

The fourth proportional to 3,865.37, 5,334.09 and 2,163.88 is: 2,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.37 : 5,334.09 = 2,163.88 : x
  2. Step 2: Convert to fraction form
    3,865.37/5,334.09 = 2,163.88/x
  3. Step 3: Cross multiply
    3,865.37x = 5,334.09 × 2,163.88
  4. Step 4: Simplify right side
    3,865.37x = 11,542,304.00
  5. Step 5: Solve for x
    x = 11,542,304.00/3,865.37
  6. Step 6: Final answer
    x = 2,986.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.