Finding the Fourth Proportional to 2,832.75, 3,909.44 and 1,590.99
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Solution
The fourth proportional to 2,832.75, 3,909.44 and 1,590.99 is: 2,195.70
Step by Step Solution
- Step 1: Write the proportion equation
2,832.75 : 3,909.44 = 1,590.99 : x - Step 2: Convert to fraction form
2,832.75/3,909.44 = 1,590.99/x - Step 3: Cross multiply
2,832.75x = 3,909.44 × 1,590.99 - Step 4: Simplify right side
2,832.75x = 6,219,871.99 - Step 5: Solve for x
x = 6,219,871.99/2,832.75 - Step 6: Final answer
x = 2,195.70
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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.