Finding the Fourth Proportional to 1,785.88, 2,678.16 and 536.05
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Solution
The fourth proportional to 1,785.88, 2,678.16 and 536.05 is: 803.88
Step by Step Solution
- Step 1: Write the proportion equation
1,785.88 : 2,678.16 = 536.05 : x - Step 2: Convert to fraction form
1,785.88/2,678.16 = 536.05/x - Step 3: Cross multiply
1,785.88x = 2,678.16 × 536.05 - Step 4: Simplify right side
1,785.88x = 1,435,633.03 - Step 5: Solve for x
x = 1,435,633.03/1,785.88 - Step 6: Final answer
x = 803.88
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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.