Finding the Fourth Proportional to 3,870,349.48, 5,340,436.68 and 2,151,236.26
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Solution
The fourth proportional to 3,870,349.48, 5,340,436.68 and 2,151,236.26 is: 2,968,347.20
Step by Step Solution
- Step 1: Write the proportion equation
3,870,349.48 : 5,340,436.68 = 2,151,236.26 : x - Step 2: Convert to fraction form
3,870,349.48/5,340,436.68 = 2,151,236.26/x - Step 3: Cross multiply
3,870,349.48x = 5,340,436.68 × 2,151,236.26 - Step 4: Simplify right side
3,870,349.48x = 11,488,541,030,250.02 - Step 5: Solve for x
x = 11,488,541,030,250.02/3,870,349.48 - Step 6: Final answer
x = 2,968,347.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.