Finding the Fourth Proportional to 1,036.09, 1,429.75 and 704.09
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Solution
The fourth proportional to 1,036.09, 1,429.75 and 704.09 is: 971.61
Step by Step Solution
- Step 1: Write the proportion equation
1,036.09 : 1,429.75 = 704.09 : x - Step 2: Convert to fraction form
1,036.09/1,429.75 = 704.09/x - Step 3: Cross multiply
1,036.09x = 1,429.75 × 704.09 - Step 4: Simplify right side
1,036.09x = 1,006,677.13 - Step 5: Solve for x
x = 1,006,677.13/1,036.09 - Step 6: Final answer
x = 971.61
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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.