Finding the Fourth Proportional to 6,286.44, 9,430.68 and 2,126.70
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Solution
The fourth proportional to 6,286.44, 9,430.68 and 2,126.70 is: 3,190.39
Step by Step Solution
- Step 1: Write the proportion equation
6,286.44 : 9,430.68 = 2,126.70 : x - Step 2: Convert to fraction form
6,286.44/9,430.68 = 2,126.70/x - Step 3: Cross multiply
6,286.44x = 9,430.68 × 2,126.70 - Step 4: Simplify right side
6,286.44x = 20,056,235.13 - Step 5: Solve for x
x = 20,056,235.13/6,286.44 - Step 6: Final answer
x = 3,190.39
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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.