Home / 3,932.60-5,426.78-2,163.86

Finding the Fourth Proportional to 3,932.60, 5,426.78 and 2,163.86

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Solution

The fourth proportional to 3,932.60, 5,426.78 and 2,163.86 is: 2,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.60 : 5,426.78 = 2,163.86 : x
  2. Step 2: Convert to fraction form
    3,932.60/5,426.78 = 2,163.86/x
  3. Step 3: Cross multiply
    3,932.60x = 5,426.78 × 2,163.86
  4. Step 4: Simplify right side
    3,932.60x = 11,742,774.57
  5. Step 5: Solve for x
    x = 11,742,774.57/3,932.60
  6. Step 6: Final answer
    x = 2,986.01

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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.