Finding the Third Proportional to 2,808 and 7,020
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Solution
The third proportional to 2,808 and 7,020 is: 17,550
Step by Step Solution
- Step 1: Write the proportion equation
2,808 : 7,020 = 7,020 : x - Step 2: Convert to fraction form
2,808/7,020 = 7,020/x - Step 3: Cross multiply
2,808x = 7,020 × 7,020 - Step 4: Simplify right side
2,808x = 49,280,400 - Step 5: Solve for x
x = 49,280,400/2,808 - Step 6: Final answer
x = 17,550
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Why These Related Problems?
These problems maintain the same ratio (2.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.