Finding the Fourth Proportional to 2,738.92, 4,108.90 and 889.88
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Solution
The fourth proportional to 2,738.92, 4,108.90 and 889.88 is: 1,334.99
Step by Step Solution
- Step 1: Write the proportion equation
2,738.92 : 4,108.90 = 889.88 : x - Step 2: Convert to fraction form
2,738.92/4,108.90 = 889.88/x - Step 3: Cross multiply
2,738.92x = 4,108.90 × 889.88 - Step 4: Simplify right side
2,738.92x = 3,656,427.93 - Step 5: Solve for x
x = 3,656,427.93/2,738.92 - Step 6: Final answer
x = 1,334.99
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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.