Finding the Third Proportional to 1,369.25 and 2,979.12
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Solution
The third proportional to 1,369.25 and 2,979.12 is: 6,481.79
Step by Step Solution
- Step 1: Write the proportion equation
1,369.25 : 2,979.12 = 2,979.12 : x - Step 2: Convert to fraction form
1,369.25/2,979.12 = 2,979.12/x - Step 3: Cross multiply
1,369.25x = 2,979.12 × 2,979.12 - Step 4: Simplify right side
1,369.25x = 8,875,174.13 - Step 5: Solve for x
x = 8,875,174.13/1,369.25 - Step 6: Final answer
x = 6,481.79
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.