Finding the Third Proportional to 1,998.66 and 3,135.09
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Solution
The third proportional to 1,998.66 and 3,135.09 is: 4,917.71
Step by Step Solution
- Step 1: Write the proportion equation
1,998.66 : 3,135.09 = 3,135.09 : x - Step 2: Convert to fraction form
1,998.66/3,135.09 = 3,135.09/x - Step 3: Cross multiply
1,998.66x = 3,135.09 × 3,135.09 - Step 4: Simplify right side
1,998.66x = 9,828,812.82 - Step 5: Solve for x
x = 9,828,812.82/1,998.66 - Step 6: Final answer
x = 4,917.71
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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.