Finding the Fourth Proportional to 2,409.81, 3,615.99 and 948.99
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Solution
The fourth proportional to 2,409.81, 3,615.99 and 948.99 is: 1,423.99
Step by Step Solution
- Step 1: Write the proportion equation
2,409.81 : 3,615.99 = 948.99 : x - Step 2: Convert to fraction form
2,409.81/3,615.99 = 948.99/x - Step 3: Cross multiply
2,409.81x = 3,615.99 × 948.99 - Step 4: Simplify right side
2,409.81x = 3,431,538.35 - Step 5: Solve for x
x = 3,431,538.35/2,409.81 - Step 6: Final answer
x = 1,423.99
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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.