Finding the Fourth Proportional to 7,725.26, 11,587.42 and 3,774.99
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Solution
The fourth proportional to 7,725.26, 11,587.42 and 3,774.99 is: 5,662.26
Step by Step Solution
- Step 1: Write the proportion equation
7,725.26 : 11,587.42 = 3,774.99 : x - Step 2: Convert to fraction form
7,725.26/11,587.42 = 3,774.99/x - Step 3: Cross multiply
7,725.26x = 11,587.42 × 3,774.99 - Step 4: Simplify right side
7,725.26x = 43,742,394.63 - Step 5: Solve for x
x = 43,742,394.63/7,725.26 - Step 6: Final answer
x = 5,662.26
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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.