Finding the Fourth Proportional to 7,637.19, 11,455.17 and 2,371.99
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Solution
The fourth proportional to 7,637.19, 11,455.17 and 2,371.99 is: 3,557.79
Step by Step Solution
- Step 1: Write the proportion equation
7,637.19 : 11,455.17 = 2,371.99 : x - Step 2: Convert to fraction form
7,637.19/11,455.17 = 2,371.99/x - Step 3: Cross multiply
7,637.19x = 11,455.17 × 2,371.99 - Step 4: Simplify right side
7,637.19x = 27,171,548.69 - Step 5: Solve for x
x = 27,171,548.69/7,637.19 - Step 6: Final answer
x = 3,557.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.