Home / 3,758.38-5,186.57-2,079.86

Finding the Fourth Proportional to 3,758.38, 5,186.57 and 2,079.86

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Solution

The fourth proportional to 3,758.38, 5,186.57 and 2,079.86 is: 2,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.38 : 5,186.57 = 2,079.86 : x
  2. Step 2: Convert to fraction form
    3,758.38/5,186.57 = 2,079.86/x
  3. Step 3: Cross multiply
    3,758.38x = 5,186.57 × 2,079.86
  4. Step 4: Simplify right side
    3,758.38x = 10,787,313.55
  5. Step 5: Solve for x
    x = 10,787,313.55/3,758.38
  6. Step 6: Final answer
    x = 2,870.20

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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.