Finding the Fourth Proportional to 4,936, 6,811.68 and 2,728
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Solution
The fourth proportional to 4,936, 6,811.68 and 2,728 is: 3,764.64
Step by Step Solution
- Step 1: Write the proportion equation
4,936 : 6,811.68 = 2,728 : x - Step 2: Convert to fraction form
4,936/6,811.68 = 2,728/x - Step 3: Cross multiply
4,936x = 6,811.68 × 2,728 - Step 4: Simplify right side
4,936x = 18,582,263.04 - Step 5: Solve for x
x = 18,582,263.04/4,936 - Step 6: Final answer
x = 3,764.64
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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.