Finding the Third Proportional to 976 and 1,890
Calculator
Solution
The third proportional to 976 and 1,890 is: 3,659.94
Step by Step Solution
- Step 1: Write the proportion equation
976 : 1,890 = 1,890 : x - Step 2: Convert to fraction form
976/1,890 = 1,890/x - Step 3: Cross multiply
976x = 1,890 × 1,890 - Step 4: Simplify right side
976x = 3,572,100 - Step 5: Solve for x
x = 3,572,100/976 - Step 6: Final answer
x = 3,659.94
Related Problems
Find third proportional to 488 and 945
Half scale
Find third proportional to 1,952 and 3,780
Double scale
Find third proportional to 978 and 1,894
Similar ratio
Find third proportional to 1,464 and 2,835
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.