Finding the Fourth Proportional to 2,664.92, 3,997.11 and 816.05
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Solution
The fourth proportional to 2,664.92, 3,997.11 and 816.05 is: 1,223.99
Step by Step Solution
- Step 1: Write the proportion equation
2,664.92 : 3,997.11 = 816.05 : x - Step 2: Convert to fraction form
2,664.92/3,997.11 = 816.05/x - Step 3: Cross multiply
2,664.92x = 3,997.11 × 816.05 - Step 4: Simplify right side
2,664.92x = 3,261,841.62 - Step 5: Solve for x
x = 3,261,841.62/2,664.92 - Step 6: Final answer
x = 1,223.99
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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.