Finding the Fourth Proportional to 3,648, 5,034.30 and 1,992
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Solution
The fourth proportional to 3,648, 5,034.30 and 1,992 is: 2,748.99
Step by Step Solution
- Step 1: Write the proportion equation
3,648 : 5,034.30 = 1,992 : x - Step 2: Convert to fraction form
3,648/5,034.30 = 1,992/x - Step 3: Cross multiply
3,648x = 5,034.30 × 1,992 - Step 4: Simplify right side
3,648x = 10,028,325.60 - Step 5: Solve for x
x = 10,028,325.60/3,648 - Step 6: Final answer
x = 2,748.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.