Finding the Fourth Proportional to 2,163.70, 3,246.35 and 2,083.70
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Solution
The fourth proportional to 2,163.70, 3,246.35 and 2,083.70 is: 3,126.32
Step by Step Solution
- Step 1: Write the proportion equation
2,163.70 : 3,246.35 = 2,083.70 : x - Step 2: Convert to fraction form
2,163.70/3,246.35 = 2,083.70/x - Step 3: Cross multiply
2,163.70x = 3,246.35 × 2,083.70 - Step 4: Simplify right side
2,163.70x = 6,764,419.50 - Step 5: Solve for x
x = 6,764,419.50/2,163.70 - Step 6: Final answer
x = 3,126.32
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1.5x scale
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.