Home / 3,819.84-5,267.07-2,698.80

Finding the Fourth Proportional to 3,819.84, 5,267.07 and 2,698.80

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Solution

The fourth proportional to 3,819.84, 5,267.07 and 2,698.80 is: 3,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.84 : 5,267.07 = 2,698.80 : x
  2. Step 2: Convert to fraction form
    3,819.84/5,267.07 = 2,698.80/x
  3. Step 3: Cross multiply
    3,819.84x = 5,267.07 × 2,698.80
  4. Step 4: Simplify right side
    3,819.84x = 14,214,768.52
  5. Step 5: Solve for x
    x = 14,214,768.52/3,819.84
  6. Step 6: Final answer
    x = 3,721.30

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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.