Finding the Fourth Proportional to 2,912.26, 4,367.98 and 938.09
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Solution
The fourth proportional to 2,912.26, 4,367.98 and 938.09 is: 1,407.00
Step by Step Solution
- Step 1: Write the proportion equation
2,912.26 : 4,367.98 = 938.09 : x - Step 2: Convert to fraction form
2,912.26/4,367.98 = 938.09/x - Step 3: Cross multiply
2,912.26x = 4,367.98 × 938.09 - Step 4: Simplify right side
2,912.26x = 4,097,531.83 - Step 5: Solve for x
x = 4,097,531.83/2,912.26 - Step 6: Final answer
x = 1,407.00
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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.