Finding the Fourth Proportional to 3,759,770.99, 5,188,334.49 and 2,128,516.73
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Solution
The fourth proportional to 3,759,770.99, 5,188,334.49 and 2,128,516.73 is: 2,937,268.47
Step by Step Solution
- Step 1: Write the proportion equation
3,759,770.99 : 5,188,334.49 = 2,128,516.73 : x - Step 2: Convert to fraction form
3,759,770.99/5,188,334.49 = 2,128,516.73/x - Step 3: Cross multiply
3,759,770.99x = 5,188,334.49 × 2,128,516.73 - Step 4: Simplify right side
3,759,770.99x = 11,043,456,779,762.82 - Step 5: Solve for x
x = 11,043,456,779,762.82/3,759,770.99 - Step 6: Final answer
x = 2,937,268.47
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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.