Finding the Fourth Proportional to 2,659.54, 3,989.31 and 1,196.99
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Solution
The fourth proportional to 2,659.54, 3,989.31 and 1,196.99 is: 1,795.48
Step by Step Solution
- Step 1: Write the proportion equation
2,659.54 : 3,989.31 = 1,196.99 : x - Step 2: Convert to fraction form
2,659.54/3,989.31 = 1,196.99/x - Step 3: Cross multiply
2,659.54x = 3,989.31 × 1,196.99 - Step 4: Simplify right side
2,659.54x = 4,775,144.23 - Step 5: Solve for x
x = 4,775,144.23/2,659.54 - Step 6: Final answer
x = 1,795.48
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Similar ratio
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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.