- $ \\\frac{x}{3} = \\\frac{{y - 2}}{1} = \\\frac{z}{5}$
- $ \\\frac{{x - 3}}{3} = \\\frac{{y - 1}}{{ - 1}} = \\\frac{{z - 5}}{5}$
- $ \\\frac{{x - 3}}{3} = \\\frac{{y - 2}}{{ - 1}} = \\\frac{{z - 5}}{5}$
- $ \\\frac{{x - 1}}{1} = \\\frac{y}{{ - 2}} = \\\frac{{z + 1}}{2}$