Finding the Fourth Proportional to 1,878.82, 2,818.50 and 709.26
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Solution
The fourth proportional to 1,878.82, 2,818.50 and 709.26 is: 1,063.99
Step by Step Solution
- Step 1: Write the proportion equation
1,878.82 : 2,818.50 = 709.26 : x - Step 2: Convert to fraction form
1,878.82/2,818.50 = 709.26/x - Step 3: Cross multiply
1,878.82x = 2,818.50 × 709.26 - Step 4: Simplify right side
1,878.82x = 1,999,049.31 - Step 5: Solve for x
x = 1,999,049.31/1,878.82 - Step 6: Final answer
x = 1,063.99
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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.