Finding the Fourth Proportional to 3,869,937.92, 5,340,378.12 and 2,127,594.62
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Solution
The fourth proportional to 3,869,937.92, 5,340,378.12 and 2,127,594.62 is: 2,936,005.69
Step by Step Solution
- Step 1: Write the proportion equation
3,869,937.92 : 5,340,378.12 = 2,127,594.62 : x - Step 2: Convert to fraction form
3,869,937.92/5,340,378.12 = 2,127,594.62/x - Step 3: Cross multiply
3,869,937.92x = 5,340,378.12 × 2,127,594.62 - Step 4: Simplify right side
3,869,937.92x = 11,362,159,756,877.71 - Step 5: Solve for x
x = 11,362,159,756,877.71/3,869,937.92 - Step 6: Final answer
x = 2,936,005.69
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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.