Finding the Fourth Proportional to 2,858,042.75, 3,938,662.17 and 2,805,518.84
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Solution
The fourth proportional to 2,858,042.75, 3,938,662.17 and 2,805,518.84 is: 3,866,279.09
Step by Step Solution
- Step 1: Write the proportion equation
2,858,042.75 : 3,938,662.17 = 2,805,518.84 : x - Step 2: Convert to fraction form
2,858,042.75/3,938,662.17 = 2,805,518.84/x - Step 3: Cross multiply
2,858,042.75x = 3,938,662.17 × 2,805,518.84 - Step 4: Simplify right side
2,858,042.75x = 11,049,990,902,636.97 - Step 5: Solve for x
x = 11,049,990,902,636.97/2,858,042.75 - Step 6: Final answer
x = 3,866,279.09
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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.