Finding the Fourth Proportional to 2,578.26, 3,867.40 and 847.02
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Solution
The fourth proportional to 2,578.26, 3,867.40 and 847.02 is: 1,270.53
Step by Step Solution
- Step 1: Write the proportion equation
2,578.26 : 3,867.40 = 847.02 : x - Step 2: Convert to fraction form
2,578.26/3,867.40 = 847.02/x - Step 3: Cross multiply
2,578.26x = 3,867.40 × 847.02 - Step 4: Simplify right side
2,578.26x = 3,275,765.15 - Step 5: Solve for x
x = 3,275,765.15/2,578.26 - Step 6: Final answer
x = 1,270.53
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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.