Home / 3,189.11-4,786.56-1,630.22

Finding the Fourth Proportional to 3,189.11, 4,786.56 and 1,630.22

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Solution

The fourth proportional to 3,189.11, 4,786.56 and 1,630.22 is: 2,446.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.11 : 4,786.56 = 1,630.22 : x
  2. Step 2: Convert to fraction form
    3,189.11/4,786.56 = 1,630.22/x
  3. Step 3: Cross multiply
    3,189.11x = 4,786.56 × 1,630.22
  4. Step 4: Simplify right side
    3,189.11x = 7,803,121.91
  5. Step 5: Solve for x
    x = 7,803,121.91/3,189.11
  6. Step 6: Final answer
    x = 2,446.81

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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.