Finding the Fourth Proportional to 3,940,735.41, 5,438,212.38 and 2,129,899.41
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Solution
The fourth proportional to 3,940,735.41, 5,438,212.38 and 2,129,899.41 is: 2,939,259.84
Step by Step Solution
- Step 1: Write the proportion equation
3,940,735.41 : 5,438,212.38 = 2,129,899.41 : x - Step 2: Convert to fraction form
3,940,735.41/5,438,212.38 = 2,129,899.41/x - Step 3: Cross multiply
3,940,735.41x = 5,438,212.38 × 2,129,899.41 - Step 4: Simplify right side
3,940,735.41x = 11,582,845,339,616.70 - Step 5: Solve for x
x = 11,582,845,339,616.70/3,940,735.41 - Step 6: Final answer
x = 2,939,259.84
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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.