Finding the Fourth Proportional to 3,739,278.28, 5,160,600.74 and 2,191,840.18
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Solution
The fourth proportional to 3,739,278.28, 5,160,600.74 and 2,191,840.18 is: 3,024,971.99
Step by Step Solution
- Step 1: Write the proportion equation
3,739,278.28 : 5,160,600.74 = 2,191,840.18 : x - Step 2: Convert to fraction form
3,739,278.28/5,160,600.74 = 2,191,840.18/x - Step 3: Cross multiply
3,739,278.28x = 5,160,600.74 × 2,191,840.18 - Step 4: Simplify right side
3,739,278.28x = 11,311,212,054,869.73 - Step 5: Solve for x
x = 11,311,212,054,869.73/3,739,278.28 - Step 6: Final answer
x = 3,024,971.99
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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.