Finding the Third Proportional to 3,112 and 3,388
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Solution
The third proportional to 3,112 and 3,388 is: 3,688.48
Step by Step Solution
- Step 1: Write the proportion equation
3,112 : 3,388 = 3,388 : x - Step 2: Convert to fraction form
3,112/3,388 = 3,388/x - Step 3: Cross multiply
3,112x = 3,388 × 3,388 - Step 4: Simplify right side
3,112x = 11,478,544 - Step 5: Solve for x
x = 11,478,544/3,112 - Step 6: Final answer
x = 3,688.48
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Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.