Correct ratio.

At 80 I would appreciate confirmation of what I have worked out regarding the correct ratio for my photographs to get the most accurate print with minimum loss of image edges.
My camera is a Fuji X-T2 which has a 4000 X 6000 image from the sensor which equates to a 3:2 ratio.
I want to print A4 pictures which is 11.7" X 8.3" - fractionally over 1.4:1 ratio.
When editing and re sizing (cropping) in iPhoto the nearest ratio to the A4 is the 5:7 which I believe is again 1.4 :1
Am I thinking straight?
My camera is a Fuji X-T2 which has a 4000 X 6000 image from the sensor which equates to a 3:2 ratio.
I want to print A4 pictures which is 11.7" X 8.3" - fractionally over 1.4:1 ratio.
When editing and re sizing (cropping) in iPhoto the nearest ratio to the A4 is the 5:7 which I believe is again 1.4 :1
Am I thinking straight?