Finding the Fourth Proportional to 1,915.99, 2,873.99 and 547.99
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Solution
The fourth proportional to 1,915.99, 2,873.99 and 547.99 is: 821.99
Step by Step Solution
- Step 1: Write the proportion equation
1,915.99 : 2,873.99 = 547.99 : x - Step 2: Convert to fraction form
1,915.99/2,873.99 = 547.99/x - Step 3: Cross multiply
1,915.99x = 2,873.99 × 547.99 - Step 4: Simplify right side
1,915.99x = 1,574,915.04 - Step 5: Solve for x
x = 1,574,915.04/1,915.99 - Step 6: Final answer
x = 821.99
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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.