Finding the Third Proportional to 1,389.66 and 2,073.09
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Solution
The third proportional to 1,389.66 and 2,073.09 is: 3,092.65
Step by Step Solution
- Step 1: Write the proportion equation
1,389.66 : 2,073.09 = 2,073.09 : x - Step 2: Convert to fraction form
1,389.66/2,073.09 = 2,073.09/x - Step 3: Cross multiply
1,389.66x = 2,073.09 × 2,073.09 - Step 4: Simplify right side
1,389.66x = 4,297,717.70 - Step 5: Solve for x
x = 4,297,717.70/1,389.66 - Step 6: Final answer
x = 3,092.65
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.