Finding the Third Proportional to 3,129.75 and 6,345.75
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Solution
The third proportional to 3,129.75 and 6,345.75 is: 12,866.38
Step by Step Solution
- Step 1: Write the proportion equation
3,129.75 : 6,345.75 = 6,345.75 : x - Step 2: Convert to fraction form
3,129.75/6,345.75 = 6,345.75/x - Step 3: Cross multiply
3,129.75x = 6,345.75 × 6,345.75 - Step 4: Simplify right side
3,129.75x = 40,268,543.06 - Step 5: Solve for x
x = 40,268,543.06/3,129.75 - Step 6: Final answer
x = 12,866.38
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Why These Related Problems?
These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.