Finding the Fourth Proportional to 1,457.42, 2,183.99 and 725.99
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Solution
The fourth proportional to 1,457.42, 2,183.99 and 725.99 is: 1,087.91
Step by Step Solution
- Step 1: Write the proportion equation
1,457.42 : 2,183.99 = 725.99 : x - Step 2: Convert to fraction form
1,457.42/2,183.99 = 725.99/x - Step 3: Cross multiply
1,457.42x = 2,183.99 × 725.99 - Step 4: Simplify right side
1,457.42x = 1,585,540.35 - Step 5: Solve for x
x = 1,585,540.35/1,457.42 - Step 6: Final answer
x = 1,087.91
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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.