Home / 2,268.88-3,387.44-2,129.83

Finding the Fourth Proportional to 2,268.88, 3,387.44 and 2,129.83

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Solution

The fourth proportional to 2,268.88, 3,387.44 and 2,129.83 is: 3,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.88 : 3,387.44 = 2,129.83 : x
  2. Step 2: Convert to fraction form
    2,268.88/3,387.44 = 2,129.83/x
  3. Step 3: Cross multiply
    2,268.88x = 3,387.44 × 2,129.83
  4. Step 4: Simplify right side
    2,268.88x = 7,214,671.34
  5. Step 5: Solve for x
    x = 7,214,671.34/2,268.88
  6. Step 6: Final answer
    x = 3,179.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.