Finding the Third Proportional to 800 and 1,930
Calculator
Solution
The third proportional to 800 and 1,930 is: 4,656.13
Step by Step Solution
- Step 1: Write the proportion equation
800 : 1,930 = 1,930 : x - Step 2: Convert to fraction form
800/1,930 = 1,930/x - Step 3: Cross multiply
800x = 1,930 × 1,930 - Step 4: Simplify right side
800x = 3,724,900 - Step 5: Solve for x
x = 3,724,900/800 - Step 6: Final answer
x = 4,656.13
Related Problems
Find third proportional to 400 and 965
Half scale
Find third proportional to 1,600 and 3,860
Double scale
Find third proportional to 802 and 1,935
Similar ratio
Find third proportional to 1,200 and 2,895
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.