Finding the Third Proportional to 1,557 and 2,355
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Solution
The third proportional to 1,557 and 2,355 is: 3,561.99
Step by Step Solution
- Step 1: Write the proportion equation
1,557 : 2,355 = 2,355 : x - Step 2: Convert to fraction form
1,557/2,355 = 2,355/x - Step 3: Cross multiply
1,557x = 2,355 × 2,355 - Step 4: Simplify right side
1,557x = 5,546,025 - Step 5: Solve for x
x = 5,546,025/1,557 - Step 6: Final answer
x = 3,561.99
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.