Finding the Fourth Proportional to 7,839.99, 11,761.09 and 2,293.75
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Solution
The fourth proportional to 7,839.99, 11,761.09 and 2,293.75 is: 3,440.95
Step by Step Solution
- Step 1: Write the proportion equation
7,839.99 : 11,761.09 = 2,293.75 : x - Step 2: Convert to fraction form
7,839.99/11,761.09 = 2,293.75/x - Step 3: Cross multiply
7,839.99x = 11,761.09 × 2,293.75 - Step 4: Simplify right side
7,839.99x = 26,977,000.19 - Step 5: Solve for x
x = 26,977,000.19/7,839.99 - Step 6: Final answer
x = 3,440.95
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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.