Finding the Fourth Proportional to 3,940,795.44, 5,438,307 and 2,129,959.44
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Solution
The fourth proportional to 3,940,795.44, 5,438,307 and 2,129,959.44 is: 2,939,349.05
Step by Step Solution
- Step 1: Write the proportion equation
3,940,795.44 : 5,438,307 = 2,129,959.44 : x - Step 2: Convert to fraction form
3,940,795.44/5,438,307 = 2,129,959.44/x - Step 3: Cross multiply
3,940,795.44x = 5,438,307 × 2,129,959.44 - Step 4: Simplify right side
3,940,795.44x = 11,583,373,332,268.08 - Step 5: Solve for x
x = 11,583,373,332,268.08/3,940,795.44 - Step 6: Final answer
x = 2,939,349.05
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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.