Finding the Third Proportional to 2,580 and 4,000
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Solution
The third proportional to 2,580 and 4,000 is: 6,201.55
Step by Step Solution
- Step 1: Write the proportion equation
2,580 : 4,000 = 4,000 : x - Step 2: Convert to fraction form
2,580/4,000 = 4,000/x - Step 3: Cross multiply
2,580x = 4,000 × 4,000 - Step 4: Simplify right side
2,580x = 16,000,000 - Step 5: Solve for x
x = 16,000,000/2,580 - Step 6: Final answer
x = 6,201.55
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.