Finding the Fourth Proportional to 2,451.91, 3,678.48 and 720.54
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Solution
The fourth proportional to 2,451.91, 3,678.48 and 720.54 is: 1,080.99
Step by Step Solution
- Step 1: Write the proportion equation
2,451.91 : 3,678.48 = 720.54 : x - Step 2: Convert to fraction form
2,451.91/3,678.48 = 720.54/x - Step 3: Cross multiply
2,451.91x = 3,678.48 × 720.54 - Step 4: Simplify right side
2,451.91x = 2,650,491.98 - Step 5: Solve for x
x = 2,650,491.98/2,451.91 - Step 6: Final answer
x = 1,080.99
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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.