Finding the Third Proportional to 856 and 1,486
Calculator
Solution
The third proportional to 856 and 1,486 is: 2,579.67
Step by Step Solution
- Step 1: Write the proportion equation
856 : 1,486 = 1,486 : x - Step 2: Convert to fraction form
856/1,486 = 1,486/x - Step 3: Cross multiply
856x = 1,486 × 1,486 - Step 4: Simplify right side
856x = 2,208,196 - Step 5: Solve for x
x = 2,208,196/856 - Step 6: Final answer
x = 2,579.67
Related Problems
Find third proportional to 428 and 743
Half scale
Find third proportional to 1,712 and 2,972
Double scale
Find third proportional to 858 and 1,489
Similar ratio
Find third proportional to 1,284 and 2,229
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.