Finding the Fourth Proportional to 33.78, 46.99 and 33.12
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Solution
The fourth proportional to 33.78, 46.99 and 33.12 is: 46.07
Step by Step Solution
- Step 1: Write the proportion equation
33.78 : 46.99 = 33.12 : x - Step 2: Convert to fraction form
33.78/46.99 = 33.12/x - Step 3: Cross multiply
33.78x = 46.99 × 33.12 - Step 4: Simplify right side
33.78x = 1,556.31 - Step 5: Solve for x
x = 1,556.31/33.78 - Step 6: Final answer
x = 46.07
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.