Finding the Third Proportional to 2,990 and 4,486
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Solution
The third proportional to 2,990 and 4,486 is: 6,730.50
Step by Step Solution
- Step 1: Write the proportion equation
2,990 : 4,486 = 4,486 : x - Step 2: Convert to fraction form
2,990/4,486 = 4,486/x - Step 3: Cross multiply
2,990x = 4,486 × 4,486 - Step 4: Simplify right side
2,990x = 20,124,196 - Step 5: Solve for x
x = 20,124,196/2,990 - Step 6: Final answer
x = 6,730.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.