Rankle #100 answer: length of main span (shortest to longest)

The answer

Rank by length of main span (shortest to longest)

1. 1Tower Bridge (central span)61 metres
2. 2Forth Bridge (main cantilever span)521 metres
3. 3Golden Gate Bridge (main span)1,280 metres
4. 4Akashi Kaikyō Bridge (main span)1,991 metres

Why this order

Ranked shortest to longest, Tower Bridge (central span) (61 metres) goes at the top and Akashi Kaikyō Bridge (main span) (1,991 metres) at the bottom.

The closest call is Golden Gate Bridge (main span) (1,280 metres) against Akashi Kaikyō Bridge (main span) (1,991 metres), about 56% apart. That is the swap most likely to cost a point.

The biggest gap is between Tower Bridge (central span) and Forth Bridge (main cantilever span), about 8.5 times apart, so that boundary should be the easiest part of the order to get right.

From top to bottom the figures span a factor of roughly 33.

These are the figures the game reveals after you submit. They are rounded; only the order is scored.

Difficulty: medium, judged by how close the tightest pair is.

How it was scored

right slot, one place out, two or more out. The score is how many items sit in the right slot, and only 4/4 is a win. Full rules on the how to play page.