Home / 3,698.60-5,105.12-2,206.85

Finding the Fourth Proportional to 3,698.60, 5,105.12 and 2,206.85

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Solution

The fourth proportional to 3,698.60, 5,105.12 and 2,206.85 is: 3,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.60 : 5,105.12 = 2,206.85 : x
  2. Step 2: Convert to fraction form
    3,698.60/5,105.12 = 2,206.85/x
  3. Step 3: Cross multiply
    3,698.60x = 5,105.12 × 2,206.85
  4. Step 4: Simplify right side
    3,698.60x = 11,266,197.51
  5. Step 5: Solve for x
    x = 11,266,197.51/3,698.60
  6. Step 6: Final answer
    x = 3,046.07

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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.