Finding the Fourth Proportional to 5.54, 7.63 and 4
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Solution
The fourth proportional to 5.54, 7.63 and 4 is: 5.51
Step by Step Solution
- Step 1: Write the proportion equation
5.54 : 7.63 = 4 : x - Step 2: Convert to fraction form
5.54/7.63 = 4/x - Step 3: Cross multiply
5.54x = 7.63 × 4 - Step 4: Simplify right side
5.54x = 30.52 - Step 5: Solve for x
x = 30.52/5.54 - Step 6: Final answer
x = 5.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.