Finding the Fourth Proportional to 7,717.75, 11,577.30 and 2,171.14
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Solution
The fourth proportional to 7,717.75, 11,577.30 and 2,171.14 is: 3,256.89
Step by Step Solution
- Step 1: Write the proportion equation
7,717.75 : 11,577.30 = 2,171.14 : x - Step 2: Convert to fraction form
7,717.75/11,577.30 = 2,171.14/x - Step 3: Cross multiply
7,717.75x = 11,577.30 × 2,171.14 - Step 4: Simplify right side
7,717.75x = 25,135,881.24 - Step 5: Solve for x
x = 25,135,881.24/7,717.75 - Step 6: Final answer
x = 3,256.89
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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.