Finding the Third Proportional to 2,811.25 and 4,201.63
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Solution
The third proportional to 2,811.25 and 4,201.63 is: 6,279.65
Step by Step Solution
- Step 1: Write the proportion equation
2,811.25 : 4,201.63 = 4,201.63 : x - Step 2: Convert to fraction form
2,811.25/4,201.63 = 4,201.63/x - Step 3: Cross multiply
2,811.25x = 4,201.63 × 4,201.63 - Step 4: Simplify right side
2,811.25x = 17,653,652.64 - Step 5: Solve for x
x = 17,653,652.64/2,811.25 - Step 6: Final answer
x = 6,279.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.