Home / 3,189.85-4,783.90-2,018.09

Finding the Fourth Proportional to 3,189.85, 4,783.90 and 2,018.09

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Solution

The fourth proportional to 3,189.85, 4,783.90 and 2,018.09 is: 3,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.85 : 4,783.90 = 2,018.09 : x
  2. Step 2: Convert to fraction form
    3,189.85/4,783.90 = 2,018.09/x
  3. Step 3: Cross multiply
    3,189.85x = 4,783.90 × 2,018.09
  4. Step 4: Simplify right side
    3,189.85x = 9,654,340.75
  5. Step 5: Solve for x
    x = 9,654,340.75/3,189.85
  6. Step 6: Final answer
    x = 3,026.58

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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.