Finding the Fourth Proportional to 3,942, 5,440.50 and 2,286
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Solution
The fourth proportional to 3,942, 5,440.50 and 2,286 is: 3,154.99
Step by Step Solution
- Step 1: Write the proportion equation
3,942 : 5,440.50 = 2,286 : x - Step 2: Convert to fraction form
3,942/5,440.50 = 2,286/x - Step 3: Cross multiply
3,942x = 5,440.50 × 2,286 - Step 4: Simplify right side
3,942x = 12,436,983 - Step 5: Solve for x
x = 12,436,983/3,942 - Step 6: Final answer
x = 3,154.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.