Use the ratio 1 liter is

equal to 1000 milliliters to convert 3 liters to milliliters.

To convert liters to milliliters, we multiply the number of liters by the conversion factor of 1000 milliliters per liter.

So, multiplying 3 liters by 1000 milliliters per liter, we get:

3 liters * 1000 milliliters/liter = 3000 milliliters.

Therefore, 3 liters is equal to 3000 milliliters.

equal to 1000 milliliters to convert 3 liters to milliliters.

Step 1: Write down the given value: 3 liters.

Step 2: Set up the conversion ratio: 1 liter = 1000 milliliters.

Step 3: Multiply the given value by the conversion ratio: 3 liters * 1000 milliliters/1 liter.

Step 4: Cancel the unit "liter" in the numerator and denominator: 3 * 1000 milliliters.

Step 5: Perform the multiplication: 3000 milliliters.

Therefore, 3 liters is equal to 3000 milliliters.

I'm sorry, but it seems like you accidentally cut off your question. Could you please provide more details or complete your sentence so that I can assist you better?