Home / 3,189.30-4,400.32-2,010.76

Finding the Fourth Proportional to 3,189.30, 4,400.32 and 2,010.76

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Solution

The fourth proportional to 3,189.30, 4,400.32 and 2,010.76 is: 2,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.30 : 4,400.32 = 2,010.76 : x
  2. Step 2: Convert to fraction form
    3,189.30/4,400.32 = 2,010.76/x
  3. Step 3: Cross multiply
    3,189.30x = 4,400.32 × 2,010.76
  4. Step 4: Simplify right side
    3,189.30x = 8,847,987.44
  5. Step 5: Solve for x
    x = 8,847,987.44/3,189.30
  6. Step 6: Final answer
    x = 2,774.27

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.