Finding the Fourth Proportional to 4,077.06, 5,620.15 and 3,360.21
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Solution
The fourth proportional to 4,077.06, 5,620.15 and 3,360.21 is: 4,631.99
Step by Step Solution
- Step 1: Write the proportion equation
4,077.06 : 5,620.15 = 3,360.21 : x - Step 2: Convert to fraction form
4,077.06/5,620.15 = 3,360.21/x - Step 3: Cross multiply
4,077.06x = 5,620.15 × 3,360.21 - Step 4: Simplify right side
4,077.06x = 18,884,884.23 - Step 5: Solve for x
x = 18,884,884.23/4,077.06 - Step 6: Final answer
x = 4,631.99
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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.