Finding the Third Proportional to 1,387.69 and 2,955.09
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Solution
The third proportional to 1,387.69 and 2,955.09 is: 6,292.90
Step by Step Solution
- Step 1: Write the proportion equation
1,387.69 : 2,955.09 = 2,955.09 : x - Step 2: Convert to fraction form
1,387.69/2,955.09 = 2,955.09/x - Step 3: Cross multiply
1,387.69x = 2,955.09 × 2,955.09 - Step 4: Simplify right side
1,387.69x = 8,732,579.07 - Step 5: Solve for x
x = 8,732,579.07/1,387.69 - Step 6: Final answer
x = 6,292.90
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These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.