Finding the Fourth Proportional to 2,207.23, 3,310 and 646.71
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Solution
The fourth proportional to 2,207.23, 3,310 and 646.71 is: 969.82
Step by Step Solution
- Step 1: Write the proportion equation
2,207.23 : 3,310 = 646.71 : x - Step 2: Convert to fraction form
2,207.23/3,310 = 646.71/x - Step 3: Cross multiply
2,207.23x = 3,310 × 646.71 - Step 4: Simplify right side
2,207.23x = 2,140,610.10 - Step 5: Solve for x
x = 2,140,610.10/2,207.23 - Step 6: Final answer
x = 969.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.