Home / 4,947-6,826.86-2,739

Finding the Fourth Proportional to 4,947, 6,826.86 and 2,739

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Solution

The fourth proportional to 4,947, 6,826.86 and 2,739 is: 3,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947 : 6,826.86 = 2,739 : x
  2. Step 2: Convert to fraction form
    4,947/6,826.86 = 2,739/x
  3. Step 3: Cross multiply
    4,947x = 6,826.86 × 2,739
  4. Step 4: Simplify right side
    4,947x = 18,698,769.54
  5. Step 5: Solve for x
    x = 18,698,769.54/4,947
  6. Step 6: Final answer
    x = 3,779.82

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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.