Finding the Fourth Proportional to 4,893.21, 6,750.99 and 2,768.49
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Solution
The fourth proportional to 4,893.21, 6,750.99 and 2,768.49 is: 3,819.59
Step by Step Solution
- Step 1: Write the proportion equation
4,893.21 : 6,750.99 = 2,768.49 : x - Step 2: Convert to fraction form
4,893.21/6,750.99 = 2,768.49/x - Step 3: Cross multiply
4,893.21x = 6,750.99 × 2,768.49 - Step 4: Simplify right side
4,893.21x = 18,690,048.31 - Step 5: Solve for x
x = 18,690,048.31/4,893.21 - Step 6: Final answer
x = 3,819.59
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1.5x scale
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.