Home / 3,842.11-5,301.79-2,163.30

Finding the Fourth Proportional to 3,842.11, 5,301.79 and 2,163.30

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Solution

The fourth proportional to 3,842.11, 5,301.79 and 2,163.30 is: 2,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.11 : 5,301.79 = 2,163.30 : x
  2. Step 2: Convert to fraction form
    3,842.11/5,301.79 = 2,163.30/x
  3. Step 3: Cross multiply
    3,842.11x = 5,301.79 × 2,163.30
  4. Step 4: Simplify right side
    3,842.11x = 11,469,362.31
  5. Step 5: Solve for x
    x = 11,469,362.31/3,842.11
  6. Step 6: Final answer
    x = 2,985.17

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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.