Finding the Fourth Proportional to 2.67, 4 and 2.64
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Solution
The fourth proportional to 2.67, 4 and 2.64 is: 3.95
Step by Step Solution
- Step 1: Write the proportion equation
2.67 : 4 = 2.64 : x - Step 2: Convert to fraction form
2.67/4 = 2.64/x - Step 3: Cross multiply
2.67x = 4 × 2.64 - Step 4: Simplify right side
2.67x = 10.54 - Step 5: Solve for x
x = 10.54/2.67 - Step 6: Final answer
x = 3.95
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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.