Home / 3,682.05-5,080.67-2,189.94

Finding the Fourth Proportional to 3,682.05, 5,080.67 and 2,189.94

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Solution

The fourth proportional to 3,682.05, 5,080.67 and 2,189.94 is: 3,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.05 : 5,080.67 = 2,189.94 : x
  2. Step 2: Convert to fraction form
    3,682.05/5,080.67 = 2,189.94/x
  3. Step 3: Cross multiply
    3,682.05x = 5,080.67 × 2,189.94
  4. Step 4: Simplify right side
    3,682.05x = 11,126,351.51
  5. Step 5: Solve for x
    x = 11,126,351.51/3,682.05
  6. Step 6: Final answer
    x = 3,021.78

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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.