Home / 3,178.05-4,785.24-2,983.65

Finding the Fourth Proportional to 3,178.05, 4,785.24 and 2,983.65

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Solution

The fourth proportional to 3,178.05, 4,785.24 and 2,983.65 is: 4,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.05 : 4,785.24 = 2,983.65 : x
  2. Step 2: Convert to fraction form
    3,178.05/4,785.24 = 2,983.65/x
  3. Step 3: Cross multiply
    3,178.05x = 4,785.24 × 2,983.65
  4. Step 4: Simplify right side
    3,178.05x = 14,277,481.33
  5. Step 5: Solve for x
    x = 14,277,481.33/3,178.05
  6. Step 6: Final answer
    x = 4,492.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.