Finding the Third Proportional to 3,940.75 and 8,479.75
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Solution
The third proportional to 3,940.75 and 8,479.75 is: 18,246.82
Step by Step Solution
- Step 1: Write the proportion equation
3,940.75 : 8,479.75 = 8,479.75 : x - Step 2: Convert to fraction form
3,940.75/8,479.75 = 8,479.75/x - Step 3: Cross multiply
3,940.75x = 8,479.75 × 8,479.75 - Step 4: Simplify right side
3,940.75x = 71,906,160.06 - Step 5: Solve for x
x = 71,906,160.06/3,940.75 - Step 6: Final answer
x = 18,246.82
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.