Finding the Fourth Proportional to 2,101.17, 3,151.38 and 620.09
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Solution
The fourth proportional to 2,101.17, 3,151.38 and 620.09 is: 930.02
Step by Step Solution
- Step 1: Write the proportion equation
2,101.17 : 3,151.38 = 620.09 : x - Step 2: Convert to fraction form
2,101.17/3,151.38 = 620.09/x - Step 3: Cross multiply
2,101.17x = 3,151.38 × 620.09 - Step 4: Simplify right side
2,101.17x = 1,954,139.22 - Step 5: Solve for x
x = 1,954,139.22/2,101.17 - Step 6: Final answer
x = 930.02
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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.