Finding the Fourth Proportional to 2,739.41, 4,108.86 and 765.08
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Solution
The fourth proportional to 2,739.41, 4,108.86 and 765.08 is: 1,147.54
Step by Step Solution
- Step 1: Write the proportion equation
2,739.41 : 4,108.86 = 765.08 : x - Step 2: Convert to fraction form
2,739.41/4,108.86 = 765.08/x - Step 3: Cross multiply
2,739.41x = 4,108.86 × 765.08 - Step 4: Simplify right side
2,739.41x = 3,143,586.06 - Step 5: Solve for x
x = 3,143,586.06/2,739.41 - Step 6: Final answer
x = 1,147.54
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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.