Finding the Fourth Proportional to 2,086.23, 3,128.81 and 624.99
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Solution
The fourth proportional to 2,086.23, 3,128.81 and 624.99 is: 937.32
Step by Step Solution
- Step 1: Write the proportion equation
2,086.23 : 3,128.81 = 624.99 : x - Step 2: Convert to fraction form
2,086.23/3,128.81 = 624.99/x - Step 3: Cross multiply
2,086.23x = 3,128.81 × 624.99 - Step 4: Simplify right side
2,086.23x = 1,955,471.84 - Step 5: Solve for x
x = 1,955,471.84/2,086.23 - Step 6: Final answer
x = 937.32
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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.