Finding the Fourth Proportional to 1,449.30, 2,174.01 and 475.31
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Solution
The fourth proportional to 1,449.30, 2,174.01 and 475.31 is: 712.99
Step by Step Solution
- Step 1: Write the proportion equation
1,449.30 : 2,174.01 = 475.31 : x - Step 2: Convert to fraction form
1,449.30/2,174.01 = 475.31/x - Step 3: Cross multiply
1,449.30x = 2,174.01 × 475.31 - Step 4: Simplify right side
1,449.30x = 1,033,332.35 - Step 5: Solve for x
x = 1,033,332.35/1,449.30 - Step 6: Final answer
x = 712.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.