Finding the Fourth Proportional to 2,659.05, 3,986 and 1,489.62
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Solution
The fourth proportional to 2,659.05, 3,986 and 1,489.62 is: 2,232.99
Step by Step Solution
- Step 1: Write the proportion equation
2,659.05 : 3,986 = 1,489.62 : x - Step 2: Convert to fraction form
2,659.05/3,986 = 1,489.62/x - Step 3: Cross multiply
2,659.05x = 3,986 × 1,489.62 - Step 4: Simplify right side
2,659.05x = 5,937,625.32 - Step 5: Solve for x
x = 5,937,625.32/2,659.05 - Step 6: Final answer
x = 2,232.99
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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.