Home / 2,179.14-3,268.70-945.91

Finding the Fourth Proportional to 2,179.14, 3,268.70 and 945.91

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Solution

The fourth proportional to 2,179.14, 3,268.70 and 945.91 is: 1,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.14 : 3,268.70 = 945.91 : x
  2. Step 2: Convert to fraction form
    2,179.14/3,268.70 = 945.91/x
  3. Step 3: Cross multiply
    2,179.14x = 3,268.70 × 945.91
  4. Step 4: Simplify right side
    2,179.14x = 3,091,896.02
  5. Step 5: Solve for x
    x = 3,091,896.02/2,179.14
  6. Step 6: Final answer
    x = 1,418.86

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1.5x scale

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.