Finding the Fourth Proportional to 7,946.84, 11,920.26 and 3,263.58
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Solution
The fourth proportional to 7,946.84, 11,920.26 and 3,263.58 is: 4,895.37
Step by Step Solution
- Step 1: Write the proportion equation
7,946.84 : 11,920.26 = 3,263.58 : x - Step 2: Convert to fraction form
7,946.84/11,920.26 = 3,263.58/x - Step 3: Cross multiply
7,946.84x = 11,920.26 × 3,263.58 - Step 4: Simplify right side
7,946.84x = 38,902,722.13 - Step 5: Solve for x
x = 38,902,722.13/7,946.84 - Step 6: Final answer
x = 4,895.37
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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.