Finding the Fourth Proportional to 7,478, 11,217 and 2,006
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Solution
The fourth proportional to 7,478, 11,217 and 2,006 is: 3,009
Step by Step Solution
- Step 1: Write the proportion equation
7,478 : 11,217 = 2,006 : x - Step 2: Convert to fraction form
7,478/11,217 = 2,006/x - Step 3: Cross multiply
7,478x = 11,217 × 2,006 - Step 4: Simplify right side
7,478x = 22,501,302 - Step 5: Solve for x
x = 22,501,302/7,478 - Step 6: Final answer
x = 3,009
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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.