Finding the Third Proportional to 3,156.75 and 6,639.75
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Solution
The third proportional to 3,156.75 and 6,639.75 is: 13,965.72
Step by Step Solution
- Step 1: Write the proportion equation
3,156.75 : 6,639.75 = 6,639.75 : x - Step 2: Convert to fraction form
3,156.75/6,639.75 = 6,639.75/x - Step 3: Cross multiply
3,156.75x = 6,639.75 × 6,639.75 - Step 4: Simplify right side
3,156.75x = 44,086,280.06 - Step 5: Solve for x
x = 44,086,280.06/3,156.75 - Step 6: Final answer
x = 13,965.72
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These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.