Finding the Fourth Proportional to 2,910,386.81, 3,987,248.08 and 2,801,297.90
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Solution
The fourth proportional to 2,910,386.81, 3,987,248.08 and 2,801,297.90 is: 3,837,795.59
Step by Step Solution
- Step 1: Write the proportion equation
2,910,386.81 : 3,987,248.08 = 2,801,297.90 : x - Step 2: Convert to fraction form
2,910,386.81/3,987,248.08 = 2,801,297.90/x - Step 3: Cross multiply
2,910,386.81x = 3,987,248.08 × 2,801,297.90 - Step 4: Simplify right side
2,910,386.81x = 11,169,469,676,247.91 - Step 5: Solve for x
x = 11,169,469,676,247.91/2,910,386.81 - Step 6: Final answer
x = 3,837,795.59
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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.