Finding the Fourth Proportional to 971.97, 1,341.35 and 578.99
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Solution
The fourth proportional to 971.97, 1,341.35 and 578.99 is: 799.02
Step by Step Solution
- Step 1: Write the proportion equation
971.97 : 1,341.35 = 578.99 : x - Step 2: Convert to fraction form
971.97/1,341.35 = 578.99/x - Step 3: Cross multiply
971.97x = 1,341.35 × 578.99 - Step 4: Simplify right side
971.97x = 776,618.63 - Step 5: Solve for x
x = 776,618.63/971.97 - Step 6: Final answer
x = 799.02
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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.