Home / 4,879.76-7,314.36-1,956.56

Finding the Fourth Proportional to 4,879.76, 7,314.36 and 1,956.56

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Solution

The fourth proportional to 4,879.76, 7,314.36 and 1,956.56 is: 2,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.76 : 7,314.36 = 1,956.56 : x
  2. Step 2: Convert to fraction form
    4,879.76/7,314.36 = 1,956.56/x
  3. Step 3: Cross multiply
    4,879.76x = 7,314.36 × 1,956.56
  4. Step 4: Simplify right side
    4,879.76x = 14,310,984.20
  5. Step 5: Solve for x
    x = 14,310,984.20/4,879.76
  6. Step 6: Final answer
    x = 2,932.72

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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.