Home / 2,382.69-3,286.31-2,087.45

Finding the Fourth Proportional to 2,382.69, 3,286.31 and 2,087.45

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Solution

The fourth proportional to 2,382.69, 3,286.31 and 2,087.45 is: 2,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.69 : 3,286.31 = 2,087.45 : x
  2. Step 2: Convert to fraction form
    2,382.69/3,286.31 = 2,087.45/x
  3. Step 3: Cross multiply
    2,382.69x = 3,286.31 × 2,087.45
  4. Step 4: Simplify right side
    2,382.69x = 6,859,992.83
  5. Step 5: Solve for x
    x = 6,859,992.83/2,382.69
  6. Step 6: Final answer
    x = 2,879.09

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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.