Finding the Fourth Proportional to 1,415.99, 2,124.08 and 375.98
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Solution
The fourth proportional to 1,415.99, 2,124.08 and 375.98 is: 563.99
Step by Step Solution
- Step 1: Write the proportion equation
1,415.99 : 2,124.08 = 375.98 : x - Step 2: Convert to fraction form
1,415.99/2,124.08 = 375.98/x - Step 3: Cross multiply
1,415.99x = 2,124.08 × 375.98 - Step 4: Simplify right side
1,415.99x = 798,599.10 - Step 5: Solve for x
x = 798,599.10/1,415.99 - Step 6: Final answer
x = 563.99
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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.