WASHINGTON (CNN) -- More than three in four Americans think it is likely that gas prices will hit $4 per gallon this year, and nearly half of them consider it very likely to happen, a poll said Monday.

But only a quarter of those surveyed said that gasoline is likely to reach $5 per gallon this year, and only 10 percent said it is very likely.

Eight in 10 called current gas prices unreasonable.

And only 18 percent said that gas prices are reasonable compared with the price of most other things they buy.

The telephone poll of 1,028 adult Americans was conducted Friday through Sunday. It has a sampling error of plus-or-minus 3 points.

The poll was released a day after the Lundberg Survey reported that the price of gasoline has hit a record high, averaging $3.07 for a gallon of self-serve regular in the United States.

The previous high, set last August, was $3.03.

When inflation is factored in, the new price falls just short of the all-time high set in March 1981. At the time, gasoline cost $1.35 a gallon -- in today's dollars, that's $3.13 a gallon, said Trilby Lundberg, publisher of the Lundberg Survey.