Home / 3,758.11-5,185.75-2,079.30

Finding the Fourth Proportional to 3,758.11, 5,185.75 and 2,079.30

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Solution

The fourth proportional to 3,758.11, 5,185.75 and 2,079.30 is: 2,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.11 : 5,185.75 = 2,079.30 : x
  2. Step 2: Convert to fraction form
    3,758.11/5,185.75 = 2,079.30/x
  3. Step 3: Cross multiply
    3,758.11x = 5,185.75 × 2,079.30
  4. Step 4: Simplify right side
    3,758.11x = 10,782,698.85
  5. Step 5: Solve for x
    x = 10,782,698.85/3,758.11
  6. Step 6: Final answer
    x = 2,869.18

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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.