Finding the Third Proportional to 2,130 and 4,260
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Solution
The third proportional to 2,130 and 4,260 is: 8,520
Step by Step Solution
- Step 1: Write the proportion equation
2,130 : 4,260 = 4,260 : x - Step 2: Convert to fraction form
2,130/4,260 = 4,260/x - Step 3: Cross multiply
2,130x = 4,260 × 4,260 - Step 4: Simplify right side
2,130x = 18,147,600 - Step 5: Solve for x
x = 18,147,600/2,130 - Step 6: Final answer
x = 8,520
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Why These Related Problems?
These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.