Finding the Fourth Proportional to 5,919.77, 8,879.57 and 3,424.70
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Solution
The fourth proportional to 5,919.77, 8,879.57 and 3,424.70 is: 5,136.99
Step by Step Solution
- Step 1: Write the proportion equation
5,919.77 : 8,879.57 = 3,424.70 : x - Step 2: Convert to fraction form
5,919.77/8,879.57 = 3,424.70/x - Step 3: Cross multiply
5,919.77x = 8,879.57 × 3,424.70 - Step 4: Simplify right side
5,919.77x = 30,409,801.86 - Step 5: Solve for x
x = 30,409,801.86/5,919.77 - Step 6: Final answer
x = 5,136.99
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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.