Home / 3,932.80-5,427.27-2,164.51

Finding the Fourth Proportional to 3,932.80, 5,427.27 and 2,164.51

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Solution

The fourth proportional to 3,932.80, 5,427.27 and 2,164.51 is: 2,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.80 : 5,427.27 = 2,164.51 : x
  2. Step 2: Convert to fraction form
    3,932.80/5,427.27 = 2,164.51/x
  3. Step 3: Cross multiply
    3,932.80x = 5,427.27 × 2,164.51
  4. Step 4: Simplify right side
    3,932.80x = 11,747,380.19
  5. Step 5: Solve for x
    x = 11,747,380.19/3,932.80
  6. Step 6: Final answer
    x = 2,987.03

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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.