No.
They were all part of the USSR.
The USSR.
Estonia, Latvia and Lithuania are independent sovereign states and are all members of the European Union.
Sweden, Denmark, Russia, Germany, Latvia, Lithuania, Estonia and Finland
Kaliningrad:(part of Russia) and Lithuania
Lithuania and Latvia
Poland, Lithuania, Latvia, Estonia and Finland
Estonia, Latvia, and Lithuania are the countries in the European Union which border the Baltic Sea. These three countries are the Baltic States.
Sweden, Finland and Russia.
Finland, Estonia, Latvia, and Lithuania. The last three are collectively known as the Baltic States. (Poland, farther west, has also been occupied or controlled by Russia in the past. Belarus, farther east, was the Byelorussian Soviet Socialist Republic in the USSR.)
No, Latvia is a sovereign country, located far from the former Yougoslavia. You can find Latvia at the Blatic sea next to Estonia, Lithuania, Belarussia and Russia.
Russia has access to the Baltic Sea - in the Russian exclave "Kaliningrad Oblast" there is an important war harbour. Also, Russia has access to the Eastern part of the Gulf of Finland (part of the Baltic Sea), Sankt-Petersburg is actually on the Baltic coast. What was meant in the question were perhaps "Three Baltic States" - Lithuania, Latvia and Estonia (actually, Lithuania doesn't share a border with Russia). Or maybe Latvia, Estonia and Finland?