Finding the Fourth Proportional to 1,424, 2,135.99 and 450.09
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Solution
The fourth proportional to 1,424, 2,135.99 and 450.09 is: 675.13
Step by Step Solution
- Step 1: Write the proportion equation
1,424 : 2,135.99 = 450.09 : x - Step 2: Convert to fraction form
1,424/2,135.99 = 450.09/x - Step 3: Cross multiply
1,424x = 2,135.99 × 450.09 - Step 4: Simplify right side
1,424x = 961,387.74 - Step 5: Solve for x
x = 961,387.74/1,424 - Step 6: Final answer
x = 675.13
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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.