Finding the Third Proportional to 1,918 and 4,405
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Solution
The third proportional to 1,918 and 4,405 is: 10,116.80
Step by Step Solution
- Step 1: Write the proportion equation
1,918 : 4,405 = 4,405 : x - Step 2: Convert to fraction form
1,918/4,405 = 4,405/x - Step 3: Cross multiply
1,918x = 4,405 × 4,405 - Step 4: Simplify right side
1,918x = 19,404,025 - Step 5: Solve for x
x = 19,404,025/1,918 - Step 6: Final answer
x = 10,116.80
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Why These Related Problems?
These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.