Finding the Fourth Proportional to 5,620.97, 7,756.92 and 3,102.99
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Solution
The fourth proportional to 5,620.97, 7,756.92 and 3,102.99 is: 4,282.12
Step by Step Solution
- Step 1: Write the proportion equation
5,620.97 : 7,756.92 = 3,102.99 : x - Step 2: Convert to fraction form
5,620.97/7,756.92 = 3,102.99/x - Step 3: Cross multiply
5,620.97x = 7,756.92 × 3,102.99 - Step 4: Simplify right side
5,620.97x = 24,069,645.19 - Step 5: Solve for x
x = 24,069,645.19/5,620.97 - Step 6: Final answer
x = 4,282.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.