Home / 2,179.66-3,268.77-946.30

Finding the Fourth Proportional to 2,179.66, 3,268.77 and 946.30

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Solution

The fourth proportional to 2,179.66, 3,268.77 and 946.30 is: 1,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.66 : 3,268.77 = 946.30 : x
  2. Step 2: Convert to fraction form
    2,179.66/3,268.77 = 946.30/x
  3. Step 3: Cross multiply
    2,179.66x = 3,268.77 × 946.30
  4. Step 4: Simplify right side
    2,179.66x = 3,093,237.05
  5. Step 5: Solve for x
    x = 3,093,237.05/2,179.66
  6. Step 6: Final answer
    x = 1,419.14

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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.