Home / 2,268.45-3,399.69-2,120.48

Finding the Fourth Proportional to 2,268.45, 3,399.69 and 2,120.48

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Solution

The fourth proportional to 2,268.45, 3,399.69 and 2,120.48 is: 3,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.45 : 3,399.69 = 2,120.48 : x
  2. Step 2: Convert to fraction form
    2,268.45/3,399.69 = 2,120.48/x
  3. Step 3: Cross multiply
    2,268.45x = 3,399.69 × 2,120.48
  4. Step 4: Simplify right side
    2,268.45x = 7,208,962.95
  5. Step 5: Solve for x
    x = 7,208,962.95/2,268.45
  6. Step 6: Final answer
    x = 3,177.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.