Finding the Fourth Proportional to 1,306.16, 1,958 and 484.22
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Solution
The fourth proportional to 1,306.16, 1,958 and 484.22 is: 725.87
Step by Step Solution
- Step 1: Write the proportion equation
1,306.16 : 1,958 = 484.22 : x - Step 2: Convert to fraction form
1,306.16/1,958 = 484.22/x - Step 3: Cross multiply
1,306.16x = 1,958 × 484.22 - Step 4: Simplify right side
1,306.16x = 948,102.76 - Step 5: Solve for x
x = 948,102.76/1,306.16 - Step 6: Final answer
x = 725.87
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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.