Finding the Fourth Proportional to 3,776,885.62, 5,211,939.21 and 2,145,287.95
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Solution
The fourth proportional to 3,776,885.62, 5,211,939.21 and 2,145,287.95 is: 2,960,404.82
Step by Step Solution
- Step 1: Write the proportion equation
3,776,885.62 : 5,211,939.21 = 2,145,287.95 : x - Step 2: Convert to fraction form
3,776,885.62/5,211,939.21 = 2,145,287.95/x - Step 3: Cross multiply
3,776,885.62x = 5,211,939.21 × 2,145,287.95 - Step 4: Simplify right side
3,776,885.62x = 11,181,110,383,345.52 - Step 5: Solve for x
x = 11,181,110,383,345.52/3,776,885.62 - Step 6: Final answer
x = 2,960,404.82
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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.