Finding the Third Proportional to 1,912 and 3,994
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Solution
The third proportional to 1,912 and 3,994 is: 8,343.12
Step by Step Solution
- Step 1: Write the proportion equation
1,912 : 3,994 = 3,994 : x - Step 2: Convert to fraction form
1,912/3,994 = 3,994/x - Step 3: Cross multiply
1,912x = 3,994 × 3,994 - Step 4: Simplify right side
1,912x = 15,952,036 - Step 5: Solve for x
x = 15,952,036/1,912 - Step 6: Final answer
x = 8,343.12
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Why These Related Problems?
These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.