Finding the Fourth Proportional to 2,648.09, 3,971.65 and 1,004.09
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Solution
The fourth proportional to 2,648.09, 3,971.65 and 1,004.09 is: 1,505.95
Step by Step Solution
- Step 1: Write the proportion equation
2,648.09 : 3,971.65 = 1,004.09 : x - Step 2: Convert to fraction form
2,648.09/3,971.65 = 1,004.09/x - Step 3: Cross multiply
2,648.09x = 3,971.65 × 1,004.09 - Step 4: Simplify right side
2,648.09x = 3,987,894.05 - Step 5: Solve for x
x = 3,987,894.05/2,648.09 - Step 6: Final answer
x = 1,505.95
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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.