Finding the Fourth Proportional to 7,838.99, 11,759.59 and 2,292.75
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Solution
The fourth proportional to 7,838.99, 11,759.59 and 2,292.75 is: 3,439.45
Step by Step Solution
- Step 1: Write the proportion equation
7,838.99 : 11,759.59 = 2,292.75 : x - Step 2: Convert to fraction form
7,838.99/11,759.59 = 2,292.75/x - Step 3: Cross multiply
7,838.99x = 11,759.59 × 2,292.75 - Step 4: Simplify right side
7,838.99x = 26,961,794.24 - Step 5: Solve for x
x = 26,961,794.24/7,838.99 - Step 6: Final answer
x = 3,439.45
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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.