Finding the Fourth Proportional to 7,817.21, 11,726.84 and 2,550.36
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Solution
The fourth proportional to 7,817.21, 11,726.84 and 2,550.36 is: 3,825.88
Step by Step Solution
- Step 1: Write the proportion equation
7,817.21 : 11,726.84 = 2,550.36 : x - Step 2: Convert to fraction form
7,817.21/11,726.84 = 2,550.36/x - Step 3: Cross multiply
7,817.21x = 11,726.84 × 2,550.36 - Step 4: Simplify right side
7,817.21x = 29,907,650.91 - Step 5: Solve for x
x = 29,907,650.91/7,817.21 - Step 6: Final answer
x = 3,825.88
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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.