Finding the Fourth Proportional to 4,748.49, 7,119.99 and 1,971.99
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Solution
The fourth proportional to 4,748.49, 7,119.99 and 1,971.99 is: 2,956.85
Step by Step Solution
- Step 1: Write the proportion equation
4,748.49 : 7,119.99 = 1,971.99 : x - Step 2: Convert to fraction form
4,748.49/7,119.99 = 1,971.99/x - Step 3: Cross multiply
4,748.49x = 7,119.99 × 1,971.99 - Step 4: Simplify right side
4,748.49x = 14,040,549.08 - Step 5: Solve for x
x = 14,040,549.08/4,748.49 - Step 6: Final answer
x = 2,956.85
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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.