Finding the Fourth Proportional to 3,612, 5,418 and 876
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Solution
The fourth proportional to 3,612, 5,418 and 876 is: 1,314
Step by Step Solution
- Step 1: Write the proportion equation
3,612 : 5,418 = 876 : x - Step 2: Convert to fraction form
3,612/5,418 = 876/x - Step 3: Cross multiply
3,612x = 5,418 × 876 - Step 4: Simplify right side
3,612x = 4,746,168 - Step 5: Solve for x
x = 4,746,168/3,612 - Step 6: Final answer
x = 1,314
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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.