Finding the Fourth Proportional to 34.34, 51.21 and 30.08
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Solution
The fourth proportional to 34.34, 51.21 and 30.08 is: 44.86
Step by Step Solution
- Step 1: Write the proportion equation
34.34 : 51.21 = 30.08 : x - Step 2: Convert to fraction form
34.34/51.21 = 30.08/x - Step 3: Cross multiply
34.34x = 51.21 × 30.08 - Step 4: Simplify right side
34.34x = 1,540.40 - Step 5: Solve for x
x = 1,540.40/34.34 - Step 6: Final answer
x = 44.86
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.