Finding the Fourth Proportional to 1,395.05, 2,092.90 and 470.59
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Solution
The fourth proportional to 1,395.05, 2,092.90 and 470.59 is: 705.99
Step by Step Solution
- Step 1: Write the proportion equation
1,395.05 : 2,092.90 = 470.59 : x - Step 2: Convert to fraction form
1,395.05/2,092.90 = 470.59/x - Step 3: Cross multiply
1,395.05x = 2,092.90 × 470.59 - Step 4: Simplify right side
1,395.05x = 984,891.40 - Step 5: Solve for x
x = 984,891.40/1,395.05 - Step 6: Final answer
x = 705.99
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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.