Finding the Third Proportional to 3,312.75 and 7,239.75
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Solution
The third proportional to 3,312.75 and 7,239.75 is: 15,821.89
Step by Step Solution
- Step 1: Write the proportion equation
3,312.75 : 7,239.75 = 7,239.75 : x - Step 2: Convert to fraction form
3,312.75/7,239.75 = 7,239.75/x - Step 3: Cross multiply
3,312.75x = 7,239.75 × 7,239.75 - Step 4: Simplify right side
3,312.75x = 52,413,980.06 - Step 5: Solve for x
x = 52,413,980.06/3,312.75 - Step 6: Final answer
x = 15,821.89
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.