Finding the Fourth Proportional to 1,263.98, 1,896.34 and 615.08
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Solution
The fourth proportional to 1,263.98, 1,896.34 and 615.08 is: 922.80
Step by Step Solution
- Step 1: Write the proportion equation
1,263.98 : 1,896.34 = 615.08 : x - Step 2: Convert to fraction form
1,263.98/1,896.34 = 615.08/x - Step 3: Cross multiply
1,263.98x = 1,896.34 × 615.08 - Step 4: Simplify right side
1,263.98x = 1,166,400.81 - Step 5: Solve for x
x = 1,166,400.81/1,263.98 - Step 6: Final answer
x = 922.80
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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.