Finding the Third Proportional to 2,555 and 2,783
Calculator
Solution
The third proportional to 2,555 and 2,783 is: 3,031.35
Step by Step Solution
- Step 1: Write the proportion equation
2,555 : 2,783 = 2,783 : x - Step 2: Convert to fraction form
2,555/2,783 = 2,783/x - Step 3: Cross multiply
2,555x = 2,783 × 2,783 - Step 4: Simplify right side
2,555x = 7,745,089 - Step 5: Solve for x
x = 7,745,089/2,555 - Step 6: Final answer
x = 3,031.35
Related Problems
Find third proportional to 1,277.50 and 1,391.50
Half scale
Find third proportional to 5,110 and 5,566
Double scale
Find third proportional to 2,557 and 2,785
Similar ratio
Find third proportional to 3,832.50 and 4,174.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.