Finding the Fourth Proportional to 1,401.23, 2,101.85 and 476.99
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Solution
The fourth proportional to 1,401.23, 2,101.85 and 476.99 is: 715.49
Step by Step Solution
- Step 1: Write the proportion equation
1,401.23 : 2,101.85 = 476.99 : x - Step 2: Convert to fraction form
1,401.23/2,101.85 = 476.99/x - Step 3: Cross multiply
1,401.23x = 2,101.85 × 476.99 - Step 4: Simplify right side
1,401.23x = 1,002,559.05 - Step 5: Solve for x
x = 1,002,559.05/1,401.23 - Step 6: Final answer
x = 715.49
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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.