Finding the Third Proportional to 2,120.63 and 5,439.75
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Solution
The third proportional to 2,120.63 and 5,439.75 is: 13,953.85
Step by Step Solution
- Step 1: Write the proportion equation
2,120.63 : 5,439.75 = 5,439.75 : x - Step 2: Convert to fraction form
2,120.63/5,439.75 = 5,439.75/x - Step 3: Cross multiply
2,120.63x = 5,439.75 × 5,439.75 - Step 4: Simplify right side
2,120.63x = 29,590,880.06 - Step 5: Solve for x
x = 29,590,880.06/2,120.63 - Step 6: Final answer
x = 13,953.85
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Why These Related Problems?
These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.