Home / 4,022.20-5,553.12-3,186.28

Finding the Fourth Proportional to 4,022.20, 5,553.12 and 3,186.28

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Solution

The fourth proportional to 4,022.20, 5,553.12 and 3,186.28 is: 4,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,022.20 : 5,553.12 = 3,186.28 : x
  2. Step 2: Convert to fraction form
    4,022.20/5,553.12 = 3,186.28/x
  3. Step 3: Cross multiply
    4,022.20x = 5,553.12 × 3,186.28
  4. Step 4: Simplify right side
    4,022.20x = 17,693,795.19
  5. Step 5: Solve for x
    x = 17,693,795.19/4,022.20
  6. Step 6: Final answer
    x = 4,399.03

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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.