Finding the Fourth Proportional to 2,317.99, 3,477 and 778.99
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Solution
The fourth proportional to 2,317.99, 3,477 and 778.99 is: 1,168.49
Step by Step Solution
- Step 1: Write the proportion equation
2,317.99 : 3,477 = 778.99 : x - Step 2: Convert to fraction form
2,317.99/3,477 = 778.99/x - Step 3: Cross multiply
2,317.99x = 3,477 × 778.99 - Step 4: Simplify right side
2,317.99x = 2,708,548.23 - Step 5: Solve for x
x = 2,708,548.23/2,317.99 - Step 6: Final answer
x = 1,168.49
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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.