Finding the Fourth Proportional to 1,426.41, 2,139.84 and 604.91
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Solution
The fourth proportional to 1,426.41, 2,139.84 and 604.91 is: 907.45
Step by Step Solution
- Step 1: Write the proportion equation
1,426.41 : 2,139.84 = 604.91 : x - Step 2: Convert to fraction form
1,426.41/2,139.84 = 604.91/x - Step 3: Cross multiply
1,426.41x = 2,139.84 × 604.91 - Step 4: Simplify right side
1,426.41x = 1,294,399.92 - Step 5: Solve for x
x = 1,294,399.92/1,426.41 - Step 6: Final answer
x = 907.45
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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.