Finding the Third Proportional to 841 and 1,386
Calculator
Solution
The third proportional to 841 and 1,386 is: 2,284.18
Step by Step Solution
- Step 1: Write the proportion equation
841 : 1,386 = 1,386 : x - Step 2: Convert to fraction form
841/1,386 = 1,386/x - Step 3: Cross multiply
841x = 1,386 × 1,386 - Step 4: Simplify right side
841x = 1,920,996 - Step 5: Solve for x
x = 1,920,996/841 - Step 6: Final answer
x = 2,284.18
Related Problems
Find third proportional to 420.50 and 693
Half scale
Find third proportional to 1,682 and 2,772
Double scale
Find third proportional to 843 and 1,389
Similar ratio
Find third proportional to 1,261.50 and 2,079
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.