Finding the Fourth Proportional to 3,719,012.12, 5,131,842.49 and 2,087,598.97
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Solution
The fourth proportional to 3,719,012.12, 5,131,842.49 and 2,087,598.97 is: 2,880,665.28
Step by Step Solution
- Step 1: Write the proportion equation
3,719,012.12 : 5,131,842.49 = 2,087,598.97 : x - Step 2: Convert to fraction form
3,719,012.12/5,131,842.49 = 2,087,598.97/x - Step 3: Cross multiply
3,719,012.12x = 5,131,842.49 × 2,087,598.97 - Step 4: Simplify right side
3,719,012.12x = 10,713,229,091,466.25 - Step 5: Solve for x
x = 10,713,229,091,466.25/3,719,012.12 - Step 6: Final answer
x = 2,880,665.28
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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.