Finding the Third Proportional to 3,579 and 6,879
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Solution
The third proportional to 3,579 and 6,879 is: 13,221.75
Step by Step Solution
- Step 1: Write the proportion equation
3,579 : 6,879 = 6,879 : x - Step 2: Convert to fraction form
3,579/6,879 = 6,879/x - Step 3: Cross multiply
3,579x = 6,879 × 6,879 - Step 4: Simplify right side
3,579x = 47,320,641 - Step 5: Solve for x
x = 47,320,641/3,579 - Step 6: Final answer
x = 13,221.75
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Why These Related Problems?
These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.