Finding the Third Proportional to 928 and 1,392
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Solution
The third proportional to 928 and 1,392 is: 2,088
Step by Step Solution
- Step 1: Write the proportion equation
928 : 1,392 = 1,392 : x - Step 2: Convert to fraction form
928/1,392 = 1,392/x - Step 3: Cross multiply
928x = 1,392 × 1,392 - Step 4: Simplify right side
928x = 1,937,664 - Step 5: Solve for x
x = 1,937,664/928 - Step 6: Final answer
x = 2,088
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.