Finding the Fourth Proportional to 10,202.30, 15,302.55 and 2,806.10
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Solution
The fourth proportional to 10,202.30, 15,302.55 and 2,806.10 is: 4,208.90
Step by Step Solution
- Step 1: Write the proportion equation
10,202.30 : 15,302.55 = 2,806.10 : x - Step 2: Convert to fraction form
10,202.30/15,302.55 = 2,806.10/x - Step 3: Cross multiply
10,202.30x = 15,302.55 × 2,806.10 - Step 4: Simplify right side
10,202.30x = 42,940,485.56 - Step 5: Solve for x
x = 42,940,485.56/10,202.30 - Step 6: Final answer
x = 4,208.90
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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.