Home / 3,191.62-4,785.20-1,628.58

Finding the Fourth Proportional to 3,191.62, 4,785.20 and 1,628.58

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Solution

The fourth proportional to 3,191.62, 4,785.20 and 1,628.58 is: 2,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.62 : 4,785.20 = 1,628.58 : x
  2. Step 2: Convert to fraction form
    3,191.62/4,785.20 = 1,628.58/x
  3. Step 3: Cross multiply
    3,191.62x = 4,785.20 × 1,628.58
  4. Step 4: Simplify right side
    3,191.62x = 7,793,081.02
  5. Step 5: Solve for x
    x = 7,793,081.02/3,191.62
  6. Step 6: Final answer
    x = 2,441.73

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1.5x scale

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.