Finding the Fourth Proportional to 3,106.99, 4,660.49 and 766.99
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Solution
The fourth proportional to 3,106.99, 4,660.49 and 766.99 is: 1,150.49
Step by Step Solution
- Step 1: Write the proportion equation
3,106.99 : 4,660.49 = 766.99 : x - Step 2: Convert to fraction form
3,106.99/4,660.49 = 766.99/x - Step 3: Cross multiply
3,106.99x = 4,660.49 × 766.99 - Step 4: Simplify right side
3,106.99x = 3,574,549.23 - Step 5: Solve for x
x = 3,574,549.23/3,106.99 - Step 6: Final answer
x = 1,150.49
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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.