Finding the Fourth Proportional to 2,847,995.95, 3,930,794.64 and 2,158,465.09
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Solution
The fourth proportional to 2,847,995.95, 3,930,794.64 and 2,158,465.09 is: 2,979,106.42
Step by Step Solution
- Step 1: Write the proportion equation
2,847,995.95 : 3,930,794.64 = 2,158,465.09 : x - Step 2: Convert to fraction form
2,847,995.95/3,930,794.64 = 2,158,465.09/x - Step 3: Cross multiply
2,847,995.95x = 3,930,794.64 × 2,158,465.09 - Step 4: Simplify right side
2,847,995.95x = 8,484,483,006,399.12 - Step 5: Solve for x
x = 8,484,483,006,399.12/2,847,995.95 - Step 6: Final answer
x = 2,979,106.42
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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.