Finding the Fourth Proportional to 37.63, 51.89 and 28.99
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Solution
The fourth proportional to 37.63, 51.89 and 28.99 is: 39.98
Step by Step Solution
- Step 1: Write the proportion equation
37.63 : 51.89 = 28.99 : x - Step 2: Convert to fraction form
37.63/51.89 = 28.99/x - Step 3: Cross multiply
37.63x = 51.89 × 28.99 - Step 4: Simplify right side
37.63x = 1,504.29 - Step 5: Solve for x
x = 1,504.29/37.63 - Step 6: Final answer
x = 39.98
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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.