Finding the Fourth Proportional to 1,294.17, 1,937.95 and 854.09
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Solution
The fourth proportional to 1,294.17, 1,937.95 and 854.09 is: 1,278.95
Step by Step Solution
- Step 1: Write the proportion equation
1,294.17 : 1,937.95 = 854.09 : x - Step 2: Convert to fraction form
1,294.17/1,937.95 = 854.09/x - Step 3: Cross multiply
1,294.17x = 1,937.95 × 854.09 - Step 4: Simplify right side
1,294.17x = 1,655,179.45 - Step 5: Solve for x
x = 1,655,179.45/1,294.17 - Step 6: Final answer
x = 1,278.95
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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.