Finding the Fourth Proportional to 1,007.12, 1,503.34 and 876.92
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Solution
The fourth proportional to 1,007.12, 1,503.34 and 876.92 is: 1,308.99
Step by Step Solution
- Step 1: Write the proportion equation
1,007.12 : 1,503.34 = 876.92 : x - Step 2: Convert to fraction form
1,007.12/1,503.34 = 876.92/x - Step 3: Cross multiply
1,007.12x = 1,503.34 × 876.92 - Step 4: Simplify right side
1,007.12x = 1,318,308.91 - Step 5: Solve for x
x = 1,318,308.91/1,007.12 - Step 6: Final answer
x = 1,308.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.