Finding the Third Proportional to 813 and 1,774.50
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Solution
The third proportional to 813 and 1,774.50 is: 3,873.12
Step by Step Solution
- Step 1: Write the proportion equation
813 : 1,774.50 = 1,774.50 : x - Step 2: Convert to fraction form
813/1,774.50 = 1,774.50/x - Step 3: Cross multiply
813x = 1,774.50 × 1,774.50 - Step 4: Simplify right side
813x = 3,148,850.25 - Step 5: Solve for x
x = 3,148,850.25/813 - Step 6: Final answer
x = 3,873.12
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.