Finding the Fourth Proportional to 40.81, 56.35 and 26.99
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Solution
The fourth proportional to 40.81, 56.35 and 26.99 is: 37.26
Step by Step Solution
- Step 1: Write the proportion equation
40.81 : 56.35 = 26.99 : x - Step 2: Convert to fraction form
40.81/56.35 = 26.99/x - Step 3: Cross multiply
40.81x = 56.35 × 26.99 - Step 4: Simplify right side
40.81x = 1,520.75 - Step 5: Solve for x
x = 1,520.75/40.81 - Step 6: Final answer
x = 37.26
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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.