To determine which type of candle has the greatest ratio of fragrance to wax, we need the specific ratios for each type. However, since the ratios are not provided in the question, I can't give a definitive answer.
If you can provide the specific ratios of fragrance to wax for each candle type (Type 1, Type 2, Type 3, and Type 4), I'd be happy to help you compare them and identify which has the greatest ratio.