Finding the Third Proportional to 2,916 and 3,240
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Solution
The third proportional to 2,916 and 3,240 is: 3,600
Step by Step Solution
- Step 1: Write the proportion equation
2,916 : 3,240 = 3,240 : x - Step 2: Convert to fraction form
2,916/3,240 = 3,240/x - Step 3: Cross multiply
2,916x = 3,240 × 3,240 - Step 4: Simplify right side
2,916x = 10,497,600 - Step 5: Solve for x
x = 10,497,600/2,916 - Step 6: Final answer
x = 3,600
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Why These Related Problems?
These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.