Finding the Fourth Proportional to 1,135.98, 1,704 and 442.49
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Solution
The fourth proportional to 1,135.98, 1,704 and 442.49 is: 663.74
Step by Step Solution
- Step 1: Write the proportion equation
1,135.98 : 1,704 = 442.49 : x - Step 2: Convert to fraction form
1,135.98/1,704 = 442.49/x - Step 3: Cross multiply
1,135.98x = 1,704 × 442.49 - Step 4: Simplify right side
1,135.98x = 753,994.44 - Step 5: Solve for x
x = 753,994.44/1,135.98 - Step 6: Final answer
x = 663.74
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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.