Finding the Third Proportional to 622 and 1,386
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Solution
The third proportional to 622 and 1,386 is: 3,088.42
Step by Step Solution
- Step 1: Write the proportion equation
622 : 1,386 = 1,386 : x - Step 2: Convert to fraction form
622/1,386 = 1,386/x - Step 3: Cross multiply
622x = 1,386 × 1,386 - Step 4: Simplify right side
622x = 1,920,996 - Step 5: Solve for x
x = 1,920,996/622 - Step 6: Final answer
x = 3,088.42
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These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.