Finding the Fourth Proportional to 3,876, 5,815.06 and 1,685.02
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Solution
The fourth proportional to 3,876, 5,815.06 and 1,685.02 is: 2,527.99
Step by Step Solution
- Step 1: Write the proportion equation
3,876 : 5,815.06 = 1,685.02 : x - Step 2: Convert to fraction form
3,876/5,815.06 = 1,685.02/x - Step 3: Cross multiply
3,876x = 5,815.06 × 1,685.02 - Step 4: Simplify right side
3,876x = 9,798,492.40 - Step 5: Solve for x
x = 9,798,492.40/3,876 - Step 6: Final answer
x = 2,527.99
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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.