Finding the Third Proportional to 2,118 and 4,779
Calculator
Solution
The third proportional to 2,118 and 4,779 is: 10,783.21
Step by Step Solution
- Step 1: Write the proportion equation
2,118 : 4,779 = 4,779 : x - Step 2: Convert to fraction form
2,118/4,779 = 4,779/x - Step 3: Cross multiply
2,118x = 4,779 × 4,779 - Step 4: Simplify right side
2,118x = 22,838,841 - Step 5: Solve for x
x = 22,838,841/2,118 - Step 6: Final answer
x = 10,783.21
Related Problems
Find third proportional to 1,059 and 2,389.50
Half scale
Find third proportional to 4,236 and 9,558
Double scale
Find third proportional to 2,120 and 4,784
Similar ratio
Find third proportional to 3,177 and 7,168.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.