Finding the Fourth Proportional to 2.97, 4 and 2.97
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Solution
The fourth proportional to 2.97, 4 and 2.97 is: 4
Step by Step Solution
- Step 1: Write the proportion equation
2.97 : 4 = 2.97 : x - Step 2: Convert to fraction form
2.97/4 = 2.97/x - Step 3: Cross multiply
2.97x = 4 × 2.97 - Step 4: Simplify right side
2.97x = 11.86 - Step 5: Solve for x
x = 11.86/2.97 - Step 6: Final answer
x = 4
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Why These Related Problems?
These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.