Home / 2,764.53-3,811.32-2,678.54

Finding the Fourth Proportional to 2,764.53, 3,811.32 and 2,678.54

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Solution

The fourth proportional to 2,764.53, 3,811.32 and 2,678.54 is: 3,692.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.53 : 3,811.32 = 2,678.54 : x
  2. Step 2: Convert to fraction form
    2,764.53/3,811.32 = 2,678.54/x
  3. Step 3: Cross multiply
    2,764.53x = 3,811.32 × 2,678.54
  4. Step 4: Simplify right side
    2,764.53x = 10,208,754.02
  5. Step 5: Solve for x
    x = 10,208,754.02/2,764.53
  6. Step 6: Final answer
    x = 3,692.76

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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.