Finding the Fourth Proportional to 7,427.19, 11,140.99 and 2,161.99
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Solution
The fourth proportional to 7,427.19, 11,140.99 and 2,161.99 is: 3,243.04
Step by Step Solution
- Step 1: Write the proportion equation
7,427.19 : 11,140.99 = 2,161.99 : x - Step 2: Convert to fraction form
7,427.19/11,140.99 = 2,161.99/x - Step 3: Cross multiply
7,427.19x = 11,140.99 × 2,161.99 - Step 4: Simplify right side
7,427.19x = 24,086,675.71 - Step 5: Solve for x
x = 24,086,675.71/7,427.19 - Step 6: Final answer
x = 3,243.04
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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.