Home / 3,932.16-5,426.53-2,163.90

Finding the Fourth Proportional to 3,932.16, 5,426.53 and 2,163.90

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Solution

The fourth proportional to 3,932.16, 5,426.53 and 2,163.90 is: 2,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.16 : 5,426.53 = 2,163.90 : x
  2. Step 2: Convert to fraction form
    3,932.16/5,426.53 = 2,163.90/x
  3. Step 3: Cross multiply
    3,932.16x = 5,426.53 × 2,163.90
  4. Step 4: Simplify right side
    3,932.16x = 11,742,468.27
  5. Step 5: Solve for x
    x = 11,742,468.27/3,932.16
  6. Step 6: Final answer
    x = 2,986.26

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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.