Finding the Third Proportional to 1,445 and 1,745
Calculator
Solution
The third proportional to 1,445 and 1,745 is: 2,107.28
Step by Step Solution
- Step 1: Write the proportion equation
1,445 : 1,745 = 1,745 : x - Step 2: Convert to fraction form
1,445/1,745 = 1,745/x - Step 3: Cross multiply
1,445x = 1,745 × 1,745 - Step 4: Simplify right side
1,445x = 3,045,025 - Step 5: Solve for x
x = 3,045,025/1,445 - Step 6: Final answer
x = 2,107.28
Related Problems
Find third proportional to 722.50 and 872.50
Half scale
Find third proportional to 2,890 and 3,490
Double scale
Find third proportional to 1,447 and 1,747
Similar ratio
Find third proportional to 2,167.50 and 2,617.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.