Finding the Third Proportional to 490 and 1,195
Calculator
Solution
The third proportional to 490 and 1,195 is: 2,914.34
Step by Step Solution
- Step 1: Write the proportion equation
490 : 1,195 = 1,195 : x - Step 2: Convert to fraction form
490/1,195 = 1,195/x - Step 3: Cross multiply
490x = 1,195 × 1,195 - Step 4: Simplify right side
490x = 1,428,025 - Step 5: Solve for x
x = 1,428,025/490 - Step 6: Final answer
x = 2,914.34
Related Problems
Find third proportional to 245 and 597.50
Half scale
Find third proportional to 980 and 2,390
Double scale
Find third proportional to 492 and 1,200
Similar ratio
Find third proportional to 735 and 1,792.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.