Finding the Fourth Proportional to 7,748.36, 11,620.08 and 2,553
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Solution
The fourth proportional to 7,748.36, 11,620.08 and 2,553 is: 3,828.69
Step by Step Solution
- Step 1: Write the proportion equation
7,748.36 : 11,620.08 = 2,553 : x - Step 2: Convert to fraction form
7,748.36/11,620.08 = 2,553/x - Step 3: Cross multiply
7,748.36x = 11,620.08 × 2,553 - Step 4: Simplify right side
7,748.36x = 29,666,064.24 - Step 5: Solve for x
x = 29,666,064.24/7,748.36 - Step 6: Final answer
x = 3,828.69
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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.