Finding the Fourth Proportional to 4,891.05, 6,748.00 and 3,123.68
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Solution
The fourth proportional to 4,891.05, 6,748.00 and 3,123.68 is: 4,309.62
Step by Step Solution
- Step 1: Write the proportion equation
4,891.05 : 6,748.00 = 3,123.68 : x - Step 2: Convert to fraction form
4,891.05/6,748.00 = 3,123.68/x - Step 3: Cross multiply
4,891.05x = 6,748.00 × 3,123.68 - Step 4: Simplify right side
4,891.05x = 21,078,551.09 - Step 5: Solve for x
x = 21,078,551.09/4,891.05 - Step 6: Final answer
x = 4,309.62
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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.