Finding the Third Proportional to 388 and 984
Calculator
Solution
The third proportional to 388 and 984 is: 2,495.51
Step by Step Solution
- Step 1: Write the proportion equation
388 : 984 = 984 : x - Step 2: Convert to fraction form
388/984 = 984/x - Step 3: Cross multiply
388x = 984 × 984 - Step 4: Simplify right side
388x = 968,256 - Step 5: Solve for x
x = 968,256/388 - Step 6: Final answer
x = 2,495.51
Related Problems
Find third proportional to 194 and 492
Half scale
Find third proportional to 776 and 1,968
Double scale
Find third proportional to 390 and 989
Similar ratio
Find third proportional to 582 and 1,476
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.