Home / 6,919.63-10,371.24-3,991.88

Finding the Fourth Proportional to 6,919.63, 10,371.24 and 3,991.88

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Solution

The fourth proportional to 6,919.63, 10,371.24 and 3,991.88 is: 5,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.63 : 10,371.24 = 3,991.88 : x
  2. Step 2: Convert to fraction form
    6,919.63/10,371.24 = 3,991.88/x
  3. Step 3: Cross multiply
    6,919.63x = 10,371.24 × 3,991.88
  4. Step 4: Simplify right side
    6,919.63x = 41,400,771.46
  5. Step 5: Solve for x
    x = 41,400,771.46/6,919.63
  6. Step 6: Final answer
    x = 5,983.09

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1.5x scale

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.