Finding the Fourth Proportional to 7,639.84, 11,460.11 and 2,093.75
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Solution
The fourth proportional to 7,639.84, 11,460.11 and 2,093.75 is: 3,140.72
Step by Step Solution
- Step 1: Write the proportion equation
7,639.84 : 11,460.11 = 2,093.75 : x - Step 2: Convert to fraction form
7,639.84/11,460.11 = 2,093.75/x - Step 3: Cross multiply
7,639.84x = 11,460.11 × 2,093.75 - Step 4: Simplify right side
7,639.84x = 23,994,586.41 - Step 5: Solve for x
x = 23,994,586.41/7,639.84 - Step 6: Final answer
x = 3,140.72
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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.