Finding the Third Proportional to 1,918.13 and 2,816.44
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Solution
The third proportional to 1,918.13 and 2,816.44 is: 4,135.46
Step by Step Solution
- Step 1: Write the proportion equation
1,918.13 : 2,816.44 = 2,816.44 : x - Step 2: Convert to fraction form
1,918.13/2,816.44 = 2,816.44/x - Step 3: Cross multiply
1,918.13x = 2,816.44 × 2,816.44 - Step 4: Simplify right side
1,918.13x = 7,932,320.19 - Step 5: Solve for x
x = 7,932,320.19/1,918.13 - Step 6: Final answer
x = 4,135.46
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.