Finding the Third Proportional to 909 and 1,984
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Solution
The third proportional to 909 and 1,984 is: 4,330.31
Step by Step Solution
- Step 1: Write the proportion equation
909 : 1,984 = 1,984 : x - Step 2: Convert to fraction form
909/1,984 = 1,984/x - Step 3: Cross multiply
909x = 1,984 × 1,984 - Step 4: Simplify right side
909x = 3,936,256 - Step 5: Solve for x
x = 3,936,256/909 - Step 6: Final answer
x = 4,330.31
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.