Finding the Fourth Proportional to 40.91, 56.39 and 33.99
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Solution
The fourth proportional to 40.91, 56.39 and 33.99 is: 46.85
Step by Step Solution
- Step 1: Write the proportion equation
40.91 : 56.39 = 33.99 : x - Step 2: Convert to fraction form
40.91/56.39 = 33.99/x - Step 3: Cross multiply
40.91x = 56.39 × 33.99 - Step 4: Simplify right side
40.91x = 1,916.53 - Step 5: Solve for x
x = 1,916.53/40.91 - Step 6: Final answer
x = 46.85
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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.