Finding the Fourth Proportional to 7,677.68, 11,515.37 and 2,130.44
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Solution
The fourth proportional to 7,677.68, 11,515.37 and 2,130.44 is: 3,195.33
Step by Step Solution
- Step 1: Write the proportion equation
7,677.68 : 11,515.37 = 2,130.44 : x - Step 2: Convert to fraction form
7,677.68/11,515.37 = 2,130.44/x - Step 3: Cross multiply
7,677.68x = 11,515.37 × 2,130.44 - Step 4: Simplify right side
7,677.68x = 24,532,736.63 - Step 5: Solve for x
x = 24,532,736.63/7,677.68 - Step 6: Final answer
x = 3,195.33
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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.