Mike will use 7/4 portions of pork.
What is a ratio?
A ratio indicates how many times one number contains another.
In the given question,
Total = 7 pound
beef : pork = 3 : 1
This means that if there are 3 pounds of beef there will be 1 pound of pork.
Which means out of total 1/4 will be pork
Since there is 7 pounds of meat, the amount of pork is
[tex]7 \times \frac{1}{4}=\frac{7}{4}\\\\[/tex]
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