Finding the Fourth Proportional to 2,213,686.18, 3,034,974.91 and 2,173,336.03
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Solution
The fourth proportional to 2,213,686.18, 3,034,974.91 and 2,173,336.03 is: 2,979,654.65
Step by Step Solution
- Step 1: Write the proportion equation
2,213,686.18 : 3,034,974.91 = 2,173,336.03 : x - Step 2: Convert to fraction form
2,213,686.18/3,034,974.91 = 2,173,336.03/x - Step 3: Cross multiply
2,213,686.18x = 3,034,974.91 × 2,173,336.03 - Step 4: Simplify right side
2,213,686.18x = 6,596,020,328,435.82 - Step 5: Solve for x
x = 6,596,020,328,435.82/2,213,686.18 - Step 6: Final answer
x = 2,979,654.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.