Home / 3,932.58-5,427.07-2,164.30

Finding the Fourth Proportional to 3,932.58, 5,427.07 and 2,164.30

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Solution

The fourth proportional to 3,932.58, 5,427.07 and 2,164.30 is: 2,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.58 : 5,427.07 = 2,164.30 : x
  2. Step 2: Convert to fraction form
    3,932.58/5,427.07 = 2,164.30/x
  3. Step 3: Cross multiply
    3,932.58x = 5,427.07 × 2,164.30
  4. Step 4: Simplify right side
    3,932.58x = 11,745,788.62
  5. Step 5: Solve for x
    x = 11,745,788.62/3,932.58
  6. Step 6: Final answer
    x = 2,986.79

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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.