Finding the Third Proportional to 1,028 and 1,355
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Solution
The third proportional to 1,028 and 1,355 is: 1,786.02
Step by Step Solution
- Step 1: Write the proportion equation
1,028 : 1,355 = 1,355 : x - Step 2: Convert to fraction form
1,028/1,355 = 1,355/x - Step 3: Cross multiply
1,028x = 1,355 × 1,355 - Step 4: Simplify right side
1,028x = 1,836,025 - Step 5: Solve for x
x = 1,836,025/1,028 - Step 6: Final answer
x = 1,786.02
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Why These Related Problems?
These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.