Finding the Fourth Proportional to 2,451.06, 3,676.74 and 990.17
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Solution
The fourth proportional to 2,451.06, 3,676.74 and 990.17 is: 1,485.32
Step by Step Solution
- Step 1: Write the proportion equation
2,451.06 : 3,676.74 = 990.17 : x - Step 2: Convert to fraction form
2,451.06/3,676.74 = 990.17/x - Step 3: Cross multiply
2,451.06x = 3,676.74 × 990.17 - Step 4: Simplify right side
2,451.06x = 3,640,615.59 - Step 5: Solve for x
x = 3,640,615.59/2,451.06 - Step 6: Final answer
x = 1,485.32
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1.5x scale
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.