Finding the Fourth Proportional to 1,488.36, 2,232 and 665.82
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Solution
The fourth proportional to 1,488.36, 2,232 and 665.82 is: 998.49
Step by Step Solution
- Step 1: Write the proportion equation
1,488.36 : 2,232 = 665.82 : x - Step 2: Convert to fraction form
1,488.36/2,232 = 665.82/x - Step 3: Cross multiply
1,488.36x = 2,232 × 665.82 - Step 4: Simplify right side
1,488.36x = 1,486,110.24 - Step 5: Solve for x
x = 1,486,110.24/1,488.36 - Step 6: Final answer
x = 998.49
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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.