Finding the Third Proportional to 2,904 and 7,128
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Solution
The third proportional to 2,904 and 7,128 is: 17,496
Step by Step Solution
- Step 1: Write the proportion equation
2,904 : 7,128 = 7,128 : x - Step 2: Convert to fraction form
2,904/7,128 = 7,128/x - Step 3: Cross multiply
2,904x = 7,128 × 7,128 - Step 4: Simplify right side
2,904x = 50,808,384 - Step 5: Solve for x
x = 50,808,384/2,904 - Step 6: Final answer
x = 17,496
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Why These Related Problems?
These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.