Convert 3.21 Kilograms to Grams: Metric Unit Conversion

To solve this problem, we will convert the weight from kilograms to grams.

We know that $1\, \text{kg} = 1,000\, \text{g}$. Therefore, to convert the weight from kilograms to grams, we multiply the weight in kilograms by 1,000.

With the given weight $3.21\, \text{kg}$, we perform the calculation as follows:

• Multiply $3.21$ by $1,000$:

$3.21 \times 1,000 = 3,210$

After performing this calculation, we find that $3.21 \, \text{kg}$ is equivalent to $3,210\, \text{g}$.

Therefore, the solution to the problem is $3,210$.

Comparing this result with the given multiple choice answers, the correct choice is option (3): $3,210$.