Finding the Fourth Proportional to 34.42, 51.47 and 30.82
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Solution
The fourth proportional to 34.42, 51.47 and 30.82 is: 46.09
Step by Step Solution
- Step 1: Write the proportion equation
34.42 : 51.47 = 30.82 : x - Step 2: Convert to fraction form
34.42/51.47 = 30.82/x - Step 3: Cross multiply
34.42x = 51.47 × 30.82 - Step 4: Simplify right side
34.42x = 1,586.31 - Step 5: Solve for x
x = 1,586.31/34.42 - Step 6: Final answer
x = 46.09
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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.