Finding the Fourth Proportional to 5,043.62, 6,960.09 and 2,805.44
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Solution
The fourth proportional to 5,043.62, 6,960.09 and 2,805.44 is: 3,871.45
Step by Step Solution
- Step 1: Write the proportion equation
5,043.62 : 6,960.09 = 2,805.44 : x - Step 2: Convert to fraction form
5,043.62/6,960.09 = 2,805.44/x - Step 3: Cross multiply
5,043.62x = 6,960.09 × 2,805.44 - Step 4: Simplify right side
5,043.62x = 19,526,121.77 - Step 5: Solve for x
x = 19,526,121.77/5,043.62 - Step 6: Final answer
x = 3,871.45
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1.5x scale
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.