Home / 4,977-6,867.81-2,738.97

Finding the Fourth Proportional to 4,977, 6,867.81 and 2,738.97

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Solution

The fourth proportional to 4,977, 6,867.81 and 2,738.97 is: 3,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977 : 6,867.81 = 2,738.97 : x
  2. Step 2: Convert to fraction form
    4,977/6,867.81 = 2,738.97/x
  3. Step 3: Cross multiply
    4,977x = 6,867.81 × 2,738.97
  4. Step 4: Simplify right side
    4,977x = 18,810,725.56
  5. Step 5: Solve for x
    x = 18,810,725.56/4,977
  6. Step 6: Final answer
    x = 3,779.53

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1.5x scale

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.