Home / 2,768.86-3,820.38-1,573.90

Finding the Fourth Proportional to 2,768.86, 3,820.38 and 1,573.90

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Solution

The fourth proportional to 2,768.86, 3,820.38 and 1,573.90 is: 2,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.86 : 3,820.38 = 1,573.90 : x
  2. Step 2: Convert to fraction form
    2,768.86/3,820.38 = 1,573.90/x
  3. Step 3: Cross multiply
    2,768.86x = 3,820.38 × 1,573.90
  4. Step 4: Simplify right side
    2,768.86x = 6,012,896.08
  5. Step 5: Solve for x
    x = 6,012,896.08/2,768.86
  6. Step 6: Final answer
    x = 2,171.61

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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.