Finding the Fourth Proportional to 10,419.21, 15,628.77 and 2,628
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Solution
The fourth proportional to 10,419.21, 15,628.77 and 2,628 is: 3,941.99
Step by Step Solution
- Step 1: Write the proportion equation
10,419.21 : 15,628.77 = 2,628 : x - Step 2: Convert to fraction form
10,419.21/15,628.77 = 2,628/x - Step 3: Cross multiply
10,419.21x = 15,628.77 × 2,628 - Step 4: Simplify right side
10,419.21x = 41,072,407.56 - Step 5: Solve for x
x = 41,072,407.56/10,419.21 - Step 6: Final answer
x = 3,941.99
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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.