Finding the Fourth Proportional to 2,019.75, 3,029.58 and 633.09
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Solution
The fourth proportional to 2,019.75, 3,029.58 and 633.09 is: 949.62
Step by Step Solution
- Step 1: Write the proportion equation
2,019.75 : 3,029.58 = 633.09 : x - Step 2: Convert to fraction form
2,019.75/3,029.58 = 633.09/x - Step 3: Cross multiply
2,019.75x = 3,029.58 × 633.09 - Step 4: Simplify right side
2,019.75x = 1,917,996.80 - Step 5: Solve for x
x = 1,917,996.80/2,019.75 - Step 6: Final answer
x = 949.62
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1.5x scale
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.