Finding the Fourth Proportional to 979.08, 1,351.14 and 536.99
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Solution
The fourth proportional to 979.08, 1,351.14 and 536.99 is: 741.05
Step by Step Solution
- Step 1: Write the proportion equation
979.08 : 1,351.14 = 536.99 : x - Step 2: Convert to fraction form
979.08/1,351.14 = 536.99/x - Step 3: Cross multiply
979.08x = 1,351.14 × 536.99 - Step 4: Simplify right side
979.08x = 725,548.67 - Step 5: Solve for x
x = 725,548.67/979.08 - Step 6: Final answer
x = 741.05
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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.