Finding the Fourth Proportional to 2,889,575.35, 3,990,294.44 and 2,163,161.91
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Solution
The fourth proportional to 2,889,575.35, 3,990,294.44 and 2,163,161.91 is: 2,987,170.05
Step by Step Solution
- Step 1: Write the proportion equation
2,889,575.35 : 3,990,294.44 = 2,163,161.91 : x - Step 2: Convert to fraction form
2,889,575.35/3,990,294.44 = 2,163,161.91/x - Step 3: Cross multiply
2,889,575.35x = 3,990,294.44 × 2,163,161.91 - Step 4: Simplify right side
2,889,575.35x = 8,631,652,942,292.78 - Step 5: Solve for x
x = 8,631,652,942,292.78/2,889,575.35 - Step 6: Final answer
x = 2,987,170.05
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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.