Finding the Fourth Proportional to 41.96, 57.98 and 30.94
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Solution
The fourth proportional to 41.96, 57.98 and 30.94 is: 42.75
Step by Step Solution
- Step 1: Write the proportion equation
41.96 : 57.98 = 30.94 : x - Step 2: Convert to fraction form
41.96/57.98 = 30.94/x - Step 3: Cross multiply
41.96x = 57.98 × 30.94 - Step 4: Simplify right side
41.96x = 1,793.83 - Step 5: Solve for x
x = 1,793.83/41.96 - Step 6: Final answer
x = 42.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.