Finding the Third Proportional to 2,639 and 3,873
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Solution
The third proportional to 2,639 and 3,873 is: 5,684.02
Step by Step Solution
- Step 1: Write the proportion equation
2,639 : 3,873 = 3,873 : x - Step 2: Convert to fraction form
2,639/3,873 = 3,873/x - Step 3: Cross multiply
2,639x = 3,873 × 3,873 - Step 4: Simplify right side
2,639x = 15,000,129 - Step 5: Solve for x
x = 15,000,129/2,639 - Step 6: Final answer
x = 5,684.02
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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.