Finding the Fourth Proportional to 4,905.14, 6,769.11 and 2,888.63
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Solution
The fourth proportional to 4,905.14, 6,769.11 and 2,888.63 is: 3,986.33
Step by Step Solution
- Step 1: Write the proportion equation
4,905.14 : 6,769.11 = 2,888.63 : x - Step 2: Convert to fraction form
4,905.14/6,769.11 = 2,888.63/x - Step 3: Cross multiply
4,905.14x = 6,769.11 × 2,888.63 - Step 4: Simplify right side
4,905.14x = 19,553,471.14 - Step 5: Solve for x
x = 19,553,471.14/4,905.14 - Step 6: Final answer
x = 3,986.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.