Finding the Third Proportional to 1,131 and 1,331
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Solution
The third proportional to 1,131 and 1,331 is: 1,566.37
Step by Step Solution
- Step 1: Write the proportion equation
1,131 : 1,331 = 1,331 : x - Step 2: Convert to fraction form
1,131/1,331 = 1,331/x - Step 3: Cross multiply
1,131x = 1,331 × 1,331 - Step 4: Simplify right side
1,131x = 1,771,561 - Step 5: Solve for x
x = 1,771,561/1,131 - Step 6: Final answer
x = 1,566.37
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Why These Related Problems?
These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.