Finding the Third Proportional to 898 and 1,970
Calculator
Solution
The third proportional to 898 and 1,970 is: 4,321.71
Step by Step Solution
- Step 1: Write the proportion equation
898 : 1,970 = 1,970 : x - Step 2: Convert to fraction form
898/1,970 = 1,970/x - Step 3: Cross multiply
898x = 1,970 × 1,970 - Step 4: Simplify right side
898x = 3,880,900 - Step 5: Solve for x
x = 3,880,900/898 - Step 6: Final answer
x = 4,321.71
Related Problems
Find third proportional to 449 and 985
Half scale
Find third proportional to 1,796 and 3,940
Double scale
Find third proportional to 900 and 1,974
Similar ratio
Find third proportional to 1,347 and 2,955
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.