Finding the Third Proportional to 1,958 and 3,243
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Solution
The third proportional to 1,958 and 3,243 is: 5,371.32
Step by Step Solution
- Step 1: Write the proportion equation
1,958 : 3,243 = 3,243 : x - Step 2: Convert to fraction form
1,958/3,243 = 3,243/x - Step 3: Cross multiply
1,958x = 3,243 × 3,243 - Step 4: Simplify right side
1,958x = 10,517,049 - Step 5: Solve for x
x = 10,517,049/1,958 - Step 6: Final answer
x = 5,371.32
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Why These Related Problems?
These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.