Finding the Third Proportional to 1,620 and 3,474
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Solution
The third proportional to 1,620 and 3,474 is: 7,449.80
Step by Step Solution
- Step 1: Write the proportion equation
1,620 : 3,474 = 3,474 : x - Step 2: Convert to fraction form
1,620/3,474 = 3,474/x - Step 3: Cross multiply
1,620x = 3,474 × 3,474 - Step 4: Simplify right side
1,620x = 12,068,676 - Step 5: Solve for x
x = 12,068,676/1,620 - Step 6: Final answer
x = 7,449.80
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.