Finding the Fourth Proportional to 7,828.10, 11,745.95 and 3,444.99
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Solution
The fourth proportional to 7,828.10, 11,745.95 and 3,444.99 is: 5,169.15
Step by Step Solution
- Step 1: Write the proportion equation
7,828.10 : 11,745.95 = 3,444.99 : x - Step 2: Convert to fraction form
7,828.10/11,745.95 = 3,444.99/x - Step 3: Cross multiply
7,828.10x = 11,745.95 × 3,444.99 - Step 4: Simplify right side
7,828.10x = 40,464,663.07 - Step 5: Solve for x
x = 40,464,663.07/7,828.10 - Step 6: Final answer
x = 5,169.15
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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.