Finding the Fourth Proportional to 4,989.03, 6,884.90 and 2,750.99
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Solution
The fourth proportional to 4,989.03, 6,884.90 and 2,750.99 is: 3,796.39
Step by Step Solution
- Step 1: Write the proportion equation
4,989.03 : 6,884.90 = 2,750.99 : x - Step 2: Convert to fraction form
4,989.03/6,884.90 = 2,750.99/x - Step 3: Cross multiply
4,989.03x = 6,884.90 × 2,750.99 - Step 4: Simplify right side
4,989.03x = 18,940,291.05 - Step 5: Solve for x
x = 18,940,291.05/4,989.03 - Step 6: Final answer
x = 3,796.39
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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.