Finding the Fourth Proportional to 2,100.58, 3,149.44 and 867.62
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Solution
The fourth proportional to 2,100.58, 3,149.44 and 867.62 is: 1,300.84
Step by Step Solution
- Step 1: Write the proportion equation
2,100.58 : 3,149.44 = 867.62 : x - Step 2: Convert to fraction form
2,100.58/3,149.44 = 867.62/x - Step 3: Cross multiply
2,100.58x = 3,149.44 × 867.62 - Step 4: Simplify right side
2,100.58x = 2,732,517.13 - Step 5: Solve for x
x = 2,732,517.13/2,100.58 - Step 6: Final answer
x = 1,300.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.