Home / 2,382.26-3,286.71-1,386.73

Finding the Fourth Proportional to 2,382.26, 3,286.71 and 1,386.73

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Solution

The fourth proportional to 2,382.26, 3,286.71 and 1,386.73 is: 1,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.26 : 3,286.71 = 1,386.73 : x
  2. Step 2: Convert to fraction form
    2,382.26/3,286.71 = 1,386.73/x
  3. Step 3: Cross multiply
    2,382.26x = 3,286.71 × 1,386.73
  4. Step 4: Simplify right side
    2,382.26x = 4,557,783.47
  5. Step 5: Solve for x
    x = 4,557,783.47/2,382.26
  6. Step 6: Final answer
    x = 1,913.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.