Finding the Fourth Proportional to 3,870,756.26, 5,341,780.99 and 2,128,559.26
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Solution
The fourth proportional to 3,870,756.26, 5,341,780.99 and 2,128,559.26 is: 2,937,487.30
Step by Step Solution
- Step 1: Write the proportion equation
3,870,756.26 : 5,341,780.99 = 2,128,559.26 : x - Step 2: Convert to fraction form
3,870,756.26/5,341,780.99 = 2,128,559.26/x - Step 3: Cross multiply
3,870,756.26x = 5,341,780.99 × 2,128,559.26 - Step 4: Simplify right side
3,870,756.26x = 11,370,297,384,491.98 - Step 5: Solve for x
x = 11,370,297,384,491.98/3,870,756.26 - Step 6: Final answer
x = 2,937,487.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.