If gold rises against every currency, does that mean our dollar retains its value against other currencies?
Not necessarily, an individual currency could rise or fall even faster than its fellows.
Nominally.
The biggest problem as I see it is that oil has had a somewhat traditional ration to gold.
Usually, in the neighborhood of ten to fifteen barrels of oil per ounce of gold.
If gold was to rise spectacularly against the dollar (or any other currency of high oil consuming countries), the Arabs are likely to adjust the price of oil to reflect the price of gold.
So if gold went to, say $3000 an ounce, well, you do the math!