Finding the Fourth Proportional to 3,138,280.92, 4,317,237.18 and 2,749,344.84
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Solution
The fourth proportional to 3,138,280.92, 4,317,237.18 and 2,749,344.84 is: 3,782,189.70
Step by Step Solution
- Step 1: Write the proportion equation
3,138,280.92 : 4,317,237.18 = 2,749,344.84 : x - Step 2: Convert to fraction form
3,138,280.92/4,317,237.18 = 2,749,344.84/x - Step 3: Cross multiply
3,138,280.92x = 4,317,237.18 × 2,749,344.84 - Step 4: Simplify right side
3,138,280.92x = 11,869,573,763,889.15 - Step 5: Solve for x
x = 11,869,573,763,889.15/3,138,280.92 - Step 6: Final answer
x = 3,782,189.70
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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.