Home / 4,185.64-5,771.67-3,179.21

Finding the Fourth Proportional to 4,185.64, 5,771.67 and 3,179.21

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Solution

The fourth proportional to 4,185.64, 5,771.67 and 3,179.21 is: 4,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.64 : 5,771.67 = 3,179.21 : x
  2. Step 2: Convert to fraction form
    4,185.64/5,771.67 = 3,179.21/x
  3. Step 3: Cross multiply
    4,185.64x = 5,771.67 × 3,179.21
  4. Step 4: Simplify right side
    4,185.64x = 18,349,322.12
  5. Step 5: Solve for x
    x = 18,349,322.12/4,185.64
  6. Step 6: Final answer
    x = 4,383.88

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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.