Finding the Fourth Proportional to 3,477.05, 5,215.59 and 879.99
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Solution
The fourth proportional to 3,477.05, 5,215.59 and 879.99 is: 1,319.99
Step by Step Solution
- Step 1: Write the proportion equation
3,477.05 : 5,215.59 = 879.99 : x - Step 2: Convert to fraction form
3,477.05/5,215.59 = 879.99/x - Step 3: Cross multiply
3,477.05x = 5,215.59 × 879.99 - Step 4: Simplify right side
3,477.05x = 4,589,667.04 - Step 5: Solve for x
x = 4,589,667.04/3,477.05 - Step 6: Final answer
x = 1,319.99
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1.5x scale
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.