Home / 2,540.85-3,811.23-1,307.54

Finding the Fourth Proportional to 2,540.85, 3,811.23 and 1,307.54

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Solution

The fourth proportional to 2,540.85, 3,811.23 and 1,307.54 is: 1,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.85 : 3,811.23 = 1,307.54 : x
  2. Step 2: Convert to fraction form
    2,540.85/3,811.23 = 1,307.54/x
  3. Step 3: Cross multiply
    2,540.85x = 3,811.23 × 1,307.54
  4. Step 4: Simplify right side
    2,540.85x = 4,983,316.62
  5. Step 5: Solve for x
    x = 4,983,316.62/2,540.85
  6. Step 6: Final answer
    x = 1,961.28

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Similar ratio
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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.