Finding the Fourth Proportional to 1,075.61, 1,481.29 and 925.09
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Solution
The fourth proportional to 1,075.61, 1,481.29 and 925.09 is: 1,273.99
Step by Step Solution
- Step 1: Write the proportion equation
1,075.61 : 1,481.29 = 925.09 : x - Step 2: Convert to fraction form
1,075.61/1,481.29 = 925.09/x - Step 3: Cross multiply
1,075.61x = 1,481.29 × 925.09 - Step 4: Simplify right side
1,075.61x = 1,370,320.55 - Step 5: Solve for x
x = 1,370,320.55/1,075.61 - Step 6: Final answer
x = 1,273.99
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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.