Home / 3,457.37-5,183.15-1,378.91

Finding the Fourth Proportional to 3,457.37, 5,183.15 and 1,378.91

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Solution

The fourth proportional to 3,457.37, 5,183.15 and 1,378.91 is: 2,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.37 : 5,183.15 = 1,378.91 : x
  2. Step 2: Convert to fraction form
    3,457.37/5,183.15 = 1,378.91/x
  3. Step 3: Cross multiply
    3,457.37x = 5,183.15 × 1,378.91
  4. Step 4: Simplify right side
    3,457.37x = 7,147,064.56
  5. Step 5: Solve for x
    x = 7,147,064.56/3,457.37
  6. Step 6: Final answer
    x = 2,067.20

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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.