Finding the Fourth Proportional to 3,940,793.94, 5,438,304.94 and 2,129,957.94
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Solution
The fourth proportional to 3,940,793.94, 5,438,304.94 and 2,129,957.94 is: 2,939,346.99
Step by Step Solution
- Step 1: Write the proportion equation
3,940,793.94 : 5,438,304.94 = 2,129,957.94 : x - Step 2: Convert to fraction form
3,940,793.94/5,438,304.94 = 2,129,957.94/x - Step 3: Cross multiply
3,940,793.94x = 5,438,304.94 × 2,129,957.94 - Step 4: Simplify right side
3,940,793.94x = 11,583,360,787,094.22 - Step 5: Solve for x
x = 11,583,360,787,094.22/3,940,793.94 - Step 6: Final answer
x = 2,939,346.99
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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.