Finding the Fourth Proportional to 4.00, 6.00 and 1.32
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Solution
The fourth proportional to 4.00, 6.00 and 1.32 is: 1.99
Step by Step Solution
- Step 1: Write the proportion equation
4.00 : 6.00 = 1.32 : x - Step 2: Convert to fraction form
4.00/6.00 = 1.32/x - Step 3: Cross multiply
4.00x = 6.00 × 1.32 - Step 4: Simplify right side
4.00x = 7.94 - Step 5: Solve for x
x = 7.94/4.00 - Step 6: Final answer
x = 1.99
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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.