Home / 6,758.20-10,139.24-2,078.87

Finding the Fourth Proportional to 6,758.20, 10,139.24 and 2,078.87

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Solution

The fourth proportional to 6,758.20, 10,139.24 and 2,078.87 is: 3,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,758.20 : 10,139.24 = 2,078.87 : x
  2. Step 2: Convert to fraction form
    6,758.20/10,139.24 = 2,078.87/x
  3. Step 3: Cross multiply
    6,758.20x = 10,139.24 × 2,078.87
  4. Step 4: Simplify right side
    6,758.20x = 21,078,197.30
  5. Step 5: Solve for x
    x = 21,078,197.30/6,758.20
  6. Step 6: Final answer
    x = 3,118.91

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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.