Finding the Third Proportional to 661 and 1,030
Calculator
Solution
The third proportional to 661 and 1,030 is: 1,604.99
Step by Step Solution
- Step 1: Write the proportion equation
661 : 1,030 = 1,030 : x - Step 2: Convert to fraction form
661/1,030 = 1,030/x - Step 3: Cross multiply
661x = 1,030 × 1,030 - Step 4: Simplify right side
661x = 1,060,900 - Step 5: Solve for x
x = 1,060,900/661 - Step 6: Final answer
x = 1,604.99
Related Problems
Find third proportional to 330.50 and 515
Half scale
Find third proportional to 1,322 and 2,060
Double scale
Find third proportional to 663 and 1,033
Similar ratio
Find third proportional to 991.50 and 1,545
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.