Finding the Fourth Proportional to 2,889,589.24, 3,990,313.60 and 2,163,175.84
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Solution
The fourth proportional to 2,889,589.24, 3,990,313.60 and 2,163,175.84 is: 2,987,189.27
Step by Step Solution
- Step 1: Write the proportion equation
2,889,589.24 : 3,990,313.60 = 2,163,175.84 : x - Step 2: Convert to fraction form
2,889,589.24/3,990,313.60 = 2,163,175.84/x - Step 3: Cross multiply
2,889,589.24x = 3,990,313.60 × 2,163,175.84 - Step 4: Simplify right side
2,889,589.24x = 8,631,749,973,543.42 - Step 5: Solve for x
x = 8,631,749,973,543.42/2,889,589.24 - Step 6: Final answer
x = 2,987,189.27
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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.