Home / 3,809.75-5,257.65-2,238.35

Finding the Fourth Proportional to 3,809.75, 5,257.65 and 2,238.35

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Solution

The fourth proportional to 3,809.75, 5,257.65 and 2,238.35 is: 3,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.75 : 5,257.65 = 2,238.35 : x
  2. Step 2: Convert to fraction form
    3,809.75/5,257.65 = 2,238.35/x
  3. Step 3: Cross multiply
    3,809.75x = 5,257.65 × 2,238.35
  4. Step 4: Simplify right side
    3,809.75x = 11,768,460.88
  5. Step 5: Solve for x
    x = 11,768,460.88/3,809.75
  6. Step 6: Final answer
    x = 3,089.04

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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.