Finding the Third Proportional to 2,191 and 3,487.75
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Solution
The third proportional to 2,191 and 3,487.75 is: 5,551.99
Step by Step Solution
- Step 1: Write the proportion equation
2,191 : 3,487.75 = 3,487.75 : x - Step 2: Convert to fraction form
2,191/3,487.75 = 3,487.75/x - Step 3: Cross multiply
2,191x = 3,487.75 × 3,487.75 - Step 4: Simplify right side
2,191x = 12,164,400.06 - Step 5: Solve for x
x = 12,164,400.06/2,191 - Step 6: Final answer
x = 5,551.99
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Why These Related Problems?
These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.