Finding the Third Proportional to 2,190 and 3,382
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Solution
The third proportional to 2,190 and 3,382 is: 5,222.80
Step by Step Solution
- Step 1: Write the proportion equation
2,190 : 3,382 = 3,382 : x - Step 2: Convert to fraction form
2,190/3,382 = 3,382/x - Step 3: Cross multiply
2,190x = 3,382 × 3,382 - Step 4: Simplify right side
2,190x = 11,437,924 - Step 5: Solve for x
x = 11,437,924/2,190 - Step 6: Final answer
x = 5,222.80
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.