Home / 4,079.21-5,629.66-2,399.76

Finding the Fourth Proportional to 4,079.21, 5,629.66 and 2,399.76

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Solution

The fourth proportional to 4,079.21, 5,629.66 and 2,399.76 is: 3,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.21 : 5,629.66 = 2,399.76 : x
  2. Step 2: Convert to fraction form
    4,079.21/5,629.66 = 2,399.76/x
  3. Step 3: Cross multiply
    4,079.21x = 5,629.66 × 2,399.76
  4. Step 4: Simplify right side
    4,079.21x = 13,509,826.88
  5. Step 5: Solve for x
    x = 13,509,826.88/4,079.21
  6. Step 6: Final answer
    x = 3,311.88

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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.