Finding the Third Proportional to 5,343.75 and 7,971.75
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Solution
The third proportional to 5,343.75 and 7,971.75 is: 11,892.17
Step by Step Solution
- Step 1: Write the proportion equation
5,343.75 : 7,971.75 = 7,971.75 : x - Step 2: Convert to fraction form
5,343.75/7,971.75 = 7,971.75/x - Step 3: Cross multiply
5,343.75x = 7,971.75 × 7,971.75 - Step 4: Simplify right side
5,343.75x = 63,548,798.06 - Step 5: Solve for x
x = 63,548,798.06/5,343.75 - Step 6: Final answer
x = 11,892.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.