Home / 3,785.20-5,647.39-3,369.40

Finding the Fourth Proportional to 3,785.20, 5,647.39 and 3,369.40

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Solution

The fourth proportional to 3,785.20, 5,647.39 and 3,369.40 is: 5,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.20 : 5,647.39 = 3,369.40 : x
  2. Step 2: Convert to fraction form
    3,785.20/5,647.39 = 3,369.40/x
  3. Step 3: Cross multiply
    3,785.20x = 5,647.39 × 3,369.40
  4. Step 4: Simplify right side
    3,785.20x = 19,028,315.87
  5. Step 5: Solve for x
    x = 19,028,315.87/3,785.20
  6. Step 6: Final answer
    x = 5,027.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.