Finding the Third Proportional to 2,390.75 and 5,242.75
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Solution
The third proportional to 2,390.75 and 5,242.75 is: 11,496.99
Step by Step Solution
- Step 1: Write the proportion equation
2,390.75 : 5,242.75 = 5,242.75 : x - Step 2: Convert to fraction form
2,390.75/5,242.75 = 5,242.75/x - Step 3: Cross multiply
2,390.75x = 5,242.75 × 5,242.75 - Step 4: Simplify right side
2,390.75x = 27,486,427.56 - Step 5: Solve for x
x = 27,486,427.56/2,390.75 - Step 6: Final answer
x = 11,496.99
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.