Finding the Fourth Proportional to 33.25, 45.83 and 27.99
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Solution
The fourth proportional to 33.25, 45.83 and 27.99 is: 38.58
Step by Step Solution
- Step 1: Write the proportion equation
33.25 : 45.83 = 27.99 : x - Step 2: Convert to fraction form
33.25/45.83 = 27.99/x - Step 3: Cross multiply
33.25x = 45.83 × 27.99 - Step 4: Simplify right side
33.25x = 1,282.78 - Step 5: Solve for x
x = 1,282.78/33.25 - Step 6: Final answer
x = 38.58
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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.