Finding the Fourth Proportional to 7,880.64, 11,821.18 and 2,037.26
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Solution
The fourth proportional to 7,880.64, 11,821.18 and 2,037.26 is: 3,055.95
Step by Step Solution
- Step 1: Write the proportion equation
7,880.64 : 11,821.18 = 2,037.26 : x - Step 2: Convert to fraction form
7,880.64/11,821.18 = 2,037.26/x - Step 3: Cross multiply
7,880.64x = 11,821.18 × 2,037.26 - Step 4: Simplify right side
7,880.64x = 24,082,817.17 - Step 5: Solve for x
x = 24,082,817.17/7,880.64 - Step 6: Final answer
x = 3,055.95
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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.