Home / 3,932.60-5,427.08-2,164.23

Finding the Fourth Proportional to 3,932.60, 5,427.08 and 2,164.23

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Solution

The fourth proportional to 3,932.60, 5,427.08 and 2,164.23 is: 2,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.60 : 5,427.08 = 2,164.23 : x
  2. Step 2: Convert to fraction form
    3,932.60/5,427.08 = 2,164.23/x
  3. Step 3: Cross multiply
    3,932.60x = 5,427.08 × 2,164.23
  4. Step 4: Simplify right side
    3,932.60x = 11,745,438.53
  5. Step 5: Solve for x
    x = 11,745,438.53/3,932.60
  6. Step 6: Final answer
    x = 2,986.69

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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.