Finding the Third Proportional to 749 and 1,868
Calculator
Solution
The third proportional to 749 and 1,868 is: 4,658.78
Step by Step Solution
- Step 1: Write the proportion equation
749 : 1,868 = 1,868 : x - Step 2: Convert to fraction form
749/1,868 = 1,868/x - Step 3: Cross multiply
749x = 1,868 × 1,868 - Step 4: Simplify right side
749x = 3,489,424 - Step 5: Solve for x
x = 3,489,424/749 - Step 6: Final answer
x = 4,658.78
Related Problems
Find third proportional to 374.50 and 934
Half scale
Find third proportional to 1,498 and 3,736
Double scale
Find third proportional to 751 and 1,873
Similar ratio
Find third proportional to 1,123.50 and 2,802
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.