Finding the Fourth Proportional to 5,170.74, 7,750.49 and 2,540.06
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Solution
The fourth proportional to 5,170.74, 7,750.49 and 2,540.06 is: 3,807.33
Step by Step Solution
- Step 1: Write the proportion equation
5,170.74 : 7,750.49 = 2,540.06 : x - Step 2: Convert to fraction form
5,170.74/7,750.49 = 2,540.06/x - Step 3: Cross multiply
5,170.74x = 7,750.49 × 2,540.06 - Step 4: Simplify right side
5,170.74x = 19,686,687.24 - Step 5: Solve for x
x = 19,686,687.24/5,170.74 - Step 6: Final answer
x = 3,807.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.