Finding the Third Proportional to 6,480 and 7,200
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Solution
The third proportional to 6,480 and 7,200 is: 8,000
Step by Step Solution
- Step 1: Write the proportion equation
6,480 : 7,200 = 7,200 : x - Step 2: Convert to fraction form
6,480/7,200 = 7,200/x - Step 3: Cross multiply
6,480x = 7,200 × 7,200 - Step 4: Simplify right side
6,480x = 51,840,000 - Step 5: Solve for x
x = 51,840,000/6,480 - Step 6: Final answer
x = 8,000
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Why These Related Problems?
These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.