Finding the Fourth Proportional to 6,742.05, 10,104.12 and 3,578.84
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Solution
The fourth proportional to 6,742.05, 10,104.12 and 3,578.84 is: 5,363.50
Step by Step Solution
- Step 1: Write the proportion equation
6,742.05 : 10,104.12 = 3,578.84 : x - Step 2: Convert to fraction form
6,742.05/10,104.12 = 3,578.84/x - Step 3: Cross multiply
6,742.05x = 10,104.12 × 3,578.84 - Step 4: Simplify right side
6,742.05x = 36,160,978.30 - Step 5: Solve for x
x = 36,160,978.30/6,742.05 - Step 6: Final answer
x = 5,363.50
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1.5x scale
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.