Finding the Fourth Proportional to 3,107,875.42, 4,289,529.72 and 2,088,689.68
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Solution
The fourth proportional to 3,107,875.42, 4,289,529.72 and 2,088,689.68 is: 2,882,836.42
Step by Step Solution
- Step 1: Write the proportion equation
3,107,875.42 : 4,289,529.72 = 2,088,689.68 : x - Step 2: Convert to fraction form
3,107,875.42/4,289,529.72 = 2,088,689.68/x - Step 3: Cross multiply
3,107,875.42x = 4,289,529.72 × 2,088,689.68 - Step 4: Simplify right side
3,107,875.42x = 8,959,496,458,217.29 - Step 5: Solve for x
x = 8,959,496,458,217.29/3,107,875.42 - Step 6: Final answer
x = 2,882,836.42
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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.