Finding the Third Proportional to 1,788 and 3,912
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Solution
The third proportional to 1,788 and 3,912 is: 8,559.14
Step by Step Solution
- Step 1: Write the proportion equation
1,788 : 3,912 = 3,912 : x - Step 2: Convert to fraction form
1,788/3,912 = 3,912/x - Step 3: Cross multiply
1,788x = 3,912 × 3,912 - Step 4: Simplify right side
1,788x = 15,303,744 - Step 5: Solve for x
x = 15,303,744/1,788 - Step 6: Final answer
x = 8,559.14
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.