Home / 2,180.13-3,268.36-946.61

Finding the Fourth Proportional to 2,180.13, 3,268.36 and 946.61

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Solution

The fourth proportional to 2,180.13, 3,268.36 and 946.61 is: 1,419.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.13 : 3,268.36 = 946.61 : x
  2. Step 2: Convert to fraction form
    2,180.13/3,268.36 = 946.61/x
  3. Step 3: Cross multiply
    2,180.13x = 3,268.36 × 946.61
  4. Step 4: Simplify right side
    2,180.13x = 3,093,857.53
  5. Step 5: Solve for x
    x = 3,093,857.53/2,180.13
  6. Step 6: Final answer
    x = 1,419.12

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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.