Finding the Fourth Proportional to 3,937,632.75, 5,433,936.84 and 2,126,796.75
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Solution
The fourth proportional to 3,937,632.75, 5,433,936.84 and 2,126,796.75 is: 2,934,981.48
Step by Step Solution
- Step 1: Write the proportion equation
3,937,632.75 : 5,433,936.84 = 2,126,796.75 : x - Step 2: Convert to fraction form
3,937,632.75/5,433,936.84 = 2,126,796.75/x - Step 3: Cross multiply
3,937,632.75x = 5,433,936.84 × 2,126,796.75 - Step 4: Simplify right side
3,937,632.75x = 11,556,879,211,017.27 - Step 5: Solve for x
x = 11,556,879,211,017.27/3,937,632.75 - Step 6: Final answer
x = 2,934,981.48
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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.