Finding the Third Proportional to 423 and 1,038
Calculator
Solution
The third proportional to 423 and 1,038 is: 2,547.15
Step by Step Solution
- Step 1: Write the proportion equation
423 : 1,038 = 1,038 : x - Step 2: Convert to fraction form
423/1,038 = 1,038/x - Step 3: Cross multiply
423x = 1,038 × 1,038 - Step 4: Simplify right side
423x = 1,077,444 - Step 5: Solve for x
x = 1,077,444/423 - Step 6: Final answer
x = 2,547.15
Related Problems
Find third proportional to 211.50 and 519
Half scale
Find third proportional to 846 and 2,076
Double scale
Find third proportional to 425 and 1,043
Similar ratio
Find third proportional to 634.50 and 1,557
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.