Finding the Fourth Proportional to 1,370, 2,054.68 and 548.05
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Solution
The fourth proportional to 1,370, 2,054.68 and 548.05 is: 821.95
Step by Step Solution
- Step 1: Write the proportion equation
1,370 : 2,054.68 = 548.05 : x - Step 2: Convert to fraction form
1,370/2,054.68 = 548.05/x - Step 3: Cross multiply
1,370x = 2,054.68 × 548.05 - Step 4: Simplify right side
1,370x = 1,126,067.37 - Step 5: Solve for x
x = 1,126,067.37/1,370 - Step 6: Final answer
x = 821.95
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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.