Finding the Third Proportional to 765 and 1,353
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Solution
The third proportional to 765 and 1,353 is: 2,392.95
Step by Step Solution
- Step 1: Write the proportion equation
765 : 1,353 = 1,353 : x - Step 2: Convert to fraction form
765/1,353 = 1,353/x - Step 3: Cross multiply
765x = 1,353 × 1,353 - Step 4: Simplify right side
765x = 1,830,609 - Step 5: Solve for x
x = 1,830,609/765 - Step 6: Final answer
x = 2,392.95
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Why These Related Problems?
These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.