Finding the Third Proportional to 1,230.90 and 2,634.79
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Solution
The third proportional to 1,230.90 and 2,634.79 is: 5,639.89
Step by Step Solution
- Step 1: Write the proportion equation
1,230.90 : 2,634.79 = 2,634.79 : x - Step 2: Convert to fraction form
1,230.90/2,634.79 = 2,634.79/x - Step 3: Cross multiply
1,230.90x = 2,634.79 × 2,634.79 - Step 4: Simplify right side
1,230.90x = 6,942,139.13 - Step 5: Solve for x
x = 6,942,139.13/1,230.90 - Step 6: Final answer
x = 5,639.89
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.