Finding the Fourth Proportional to 2,291,639.10, 3,451,168.41 and 2,087,338.79
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Solution
The fourth proportional to 2,291,639.10, 3,451,168.41 and 2,087,338.79 is: 3,143,495.70
Step by Step Solution
- Step 1: Write the proportion equation
2,291,639.10 : 3,451,168.41 = 2,087,338.79 : x - Step 2: Convert to fraction form
2,291,639.10/3,451,168.41 = 2,087,338.79/x - Step 3: Cross multiply
2,291,639.10x = 3,451,168.41 × 2,087,338.79 - Step 4: Simplify right side
2,291,639.10x = 7,203,757,667,932.26 - Step 5: Solve for x
x = 7,203,757,667,932.26/2,291,639.10 - Step 6: Final answer
x = 3,143,495.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.