Finding the Fourth Proportional to 2,091.99, 3,137.17 and 630.75
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Solution
The fourth proportional to 2,091.99, 3,137.17 and 630.75 is: 945.88
Step by Step Solution
- Step 1: Write the proportion equation
2,091.99 : 3,137.17 = 630.75 : x - Step 2: Convert to fraction form
2,091.99/3,137.17 = 630.75/x - Step 3: Cross multiply
2,091.99x = 3,137.17 × 630.75 - Step 4: Simplify right side
2,091.99x = 1,978,769.98 - Step 5: Solve for x
x = 1,978,769.98/2,091.99 - Step 6: Final answer
x = 945.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.