Finding the Fourth Proportional to 1,759.63, 2,639.14 and 664
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Solution
The fourth proportional to 1,759.63, 2,639.14 and 664 is: 995.88
Step by Step Solution
- Step 1: Write the proportion equation
1,759.63 : 2,639.14 = 664 : x - Step 2: Convert to fraction form
1,759.63/2,639.14 = 664/x - Step 3: Cross multiply
1,759.63x = 2,639.14 × 664 - Step 4: Simplify right side
1,759.63x = 1,752,388.96 - Step 5: Solve for x
x = 1,752,388.96/1,759.63 - Step 6: Final answer
x = 995.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.