Finding the Third Proportional to 2,800 and 3,640
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Solution
The third proportional to 2,800 and 3,640 is: 4,732
Step by Step Solution
- Step 1: Write the proportion equation
2,800 : 3,640 = 3,640 : x - Step 2: Convert to fraction form
2,800/3,640 = 3,640/x - Step 3: Cross multiply
2,800x = 3,640 × 3,640 - Step 4: Simplify right side
2,800x = 13,249,600 - Step 5: Solve for x
x = 13,249,600/2,800 - Step 6: Final answer
x = 4,732
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Why These Related Problems?
These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.