Finding the Fourth Proportional to 4,110.60, 6,170.70 and 2,655.80
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Solution
The fourth proportional to 4,110.60, 6,170.70 and 2,655.80 is: 3,986.80
Step by Step Solution
- Step 1: Write the proportion equation
4,110.60 : 6,170.70 = 2,655.80 : x - Step 2: Convert to fraction form
4,110.60/6,170.70 = 2,655.80/x - Step 3: Cross multiply
4,110.60x = 6,170.70 × 2,655.80 - Step 4: Simplify right side
4,110.60x = 16,388,145.06 - Step 5: Solve for x
x = 16,388,145.06/4,110.60 - Step 6: Final answer
x = 3,986.80
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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.