Finding the Fourth Proportional to 7,682.08, 11,521.74 and 2,135.80
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Solution
The fourth proportional to 7,682.08, 11,521.74 and 2,135.80 is: 3,203.32
Step by Step Solution
- Step 1: Write the proportion equation
7,682.08 : 11,521.74 = 2,135.80 : x - Step 2: Convert to fraction form
7,682.08/11,521.74 = 2,135.80/x - Step 3: Cross multiply
7,682.08x = 11,521.74 × 2,135.80 - Step 4: Simplify right side
7,682.08x = 24,608,132.29 - Step 5: Solve for x
x = 24,608,132.29/7,682.08 - Step 6: Final answer
x = 3,203.32
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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.