Finding the Third Proportional to 975 and 1,869
Calculator
Solution
The third proportional to 975 and 1,869 is: 3,582.73
Step by Step Solution
- Step 1: Write the proportion equation
975 : 1,869 = 1,869 : x - Step 2: Convert to fraction form
975/1,869 = 1,869/x - Step 3: Cross multiply
975x = 1,869 × 1,869 - Step 4: Simplify right side
975x = 3,493,161 - Step 5: Solve for x
x = 3,493,161/975 - Step 6: Final answer
x = 3,582.73
Related Problems
Find third proportional to 487.50 and 934.50
Half scale
Find third proportional to 1,950 and 3,738
Double scale
Find third proportional to 977 and 1,873
Similar ratio
Find third proportional to 1,462.50 and 2,803.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.