Home / 4,786.50-7,182.60-2,189.64

Finding the Fourth Proportional to 4,786.50, 7,182.60 and 2,189.64

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Solution

The fourth proportional to 4,786.50, 7,182.60 and 2,189.64 is: 3,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.50 : 7,182.60 = 2,189.64 : x
  2. Step 2: Convert to fraction form
    4,786.50/7,182.60 = 2,189.64/x
  3. Step 3: Cross multiply
    4,786.50x = 7,182.60 × 2,189.64
  4. Step 4: Simplify right side
    4,786.50x = 15,727,308.26
  5. Step 5: Solve for x
    x = 15,727,308.26/4,786.50
  6. Step 6: Final answer
    x = 3,285.76

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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.