Finding the Third Proportional to 3,600 and 7,380
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Solution
The third proportional to 3,600 and 7,380 is: 15,129
Step by Step Solution
- Step 1: Write the proportion equation
3,600 : 7,380 = 7,380 : x - Step 2: Convert to fraction form
3,600/7,380 = 7,380/x - Step 3: Cross multiply
3,600x = 7,380 × 7,380 - Step 4: Simplify right side
3,600x = 54,464,400 - Step 5: Solve for x
x = 54,464,400/3,600 - Step 6: Final answer
x = 15,129
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Why These Related Problems?
These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.