Finding the Fourth Proportional to 7, 10.49 and 4
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Solution
The fourth proportional to 7, 10.49 and 4 is: 5.99
Step by Step Solution
- Step 1: Write the proportion equation
7 : 10.49 = 4 : x - Step 2: Convert to fraction form
7/10.49 = 4/x - Step 3: Cross multiply
7x = 10.49 × 4 - Step 4: Simplify right side
7x = 41.96 - Step 5: Solve for x
x = 41.96/7 - Step 6: Final answer
x = 5.99
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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.