Finding the Fourth Proportional to 3,836,983.08, 5,295,037.56 and 2,118,104.76
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Solution
The fourth proportional to 3,836,983.08, 5,295,037.56 and 2,118,104.76 is: 2,922,985.07
Step by Step Solution
- Step 1: Write the proportion equation
3,836,983.08 : 5,295,037.56 = 2,118,104.76 : x - Step 2: Convert to fraction form
3,836,983.08/5,295,037.56 = 2,118,104.76/x - Step 3: Cross multiply
3,836,983.08x = 5,295,037.56 × 2,118,104.76 - Step 4: Simplify right side
3,836,983.08x = 11,215,444,260,214.78 - Step 5: Solve for x
x = 11,215,444,260,214.78/3,836,983.08 - Step 6: Final answer
x = 2,922,985.07
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Double scale
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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.