Finding the Fourth Proportional to 1,643.84, 2,466 and 547.94
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Solution
The fourth proportional to 1,643.84, 2,466 and 547.94 is: 821.99
Step by Step Solution
- Step 1: Write the proportion equation
1,643.84 : 2,466 = 547.94 : x - Step 2: Convert to fraction form
1,643.84/2,466 = 547.94/x - Step 3: Cross multiply
1,643.84x = 2,466 × 547.94 - Step 4: Simplify right side
1,643.84x = 1,351,220.04 - Step 5: Solve for x
x = 1,351,220.04/1,643.84 - Step 6: Final answer
x = 821.99
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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.