Finding the Third Proportional to 869 and 1,872.50
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Solution
The third proportional to 869 and 1,872.50 is: 4,034.82
Step by Step Solution
- Step 1: Write the proportion equation
869 : 1,872.50 = 1,872.50 : x - Step 2: Convert to fraction form
869/1,872.50 = 1,872.50/x - Step 3: Cross multiply
869x = 1,872.50 × 1,872.50 - Step 4: Simplify right side
869x = 3,506,256.25 - Step 5: Solve for x
x = 3,506,256.25/869 - Step 6: Final answer
x = 4,034.82
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.