Home / 3,789.12-5,228.34-2,110.29

Finding the Fourth Proportional to 3,789.12, 5,228.34 and 2,110.29

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Solution

The fourth proportional to 3,789.12, 5,228.34 and 2,110.29 is: 2,911.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.12 : 5,228.34 = 2,110.29 : x
  2. Step 2: Convert to fraction form
    3,789.12/5,228.34 = 2,110.29/x
  3. Step 3: Cross multiply
    3,789.12x = 5,228.34 × 2,110.29
  4. Step 4: Simplify right side
    3,789.12x = 11,033,313.62
  5. Step 5: Solve for x
    x = 11,033,313.62/3,789.12
  6. Step 6: Final answer
    x = 2,911.84

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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.