Finding the Fourth Proportional to 3,782,431.98, 5,219,731.35 and 2,150,839.62
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Solution
The fourth proportional to 3,782,431.98, 5,219,731.35 and 2,150,839.62 is: 2,968,144.58
Step by Step Solution
- Step 1: Write the proportion equation
3,782,431.98 : 5,219,731.35 = 2,150,839.62 : x - Step 2: Convert to fraction form
3,782,431.98/5,219,731.35 = 2,150,839.62/x - Step 3: Cross multiply
3,782,431.98x = 5,219,731.35 × 2,150,839.62 - Step 4: Simplify right side
3,782,431.98x = 11,226,804,993,336.09 - Step 5: Solve for x
x = 11,226,804,993,336.09/3,782,431.98 - Step 6: Final answer
x = 2,968,144.58
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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.