Home / 3,698.12-5,103.66-2,126.12

Finding the Fourth Proportional to 3,698.12, 5,103.66 and 2,126.12

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Solution

The fourth proportional to 3,698.12, 5,103.66 and 2,126.12 is: 2,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.12 : 5,103.66 = 2,126.12 : x
  2. Step 2: Convert to fraction form
    3,698.12/5,103.66 = 2,126.12/x
  3. Step 3: Cross multiply
    3,698.12x = 5,103.66 × 2,126.12
  4. Step 4: Simplify right side
    3,698.12x = 10,850,993.60
  5. Step 5: Solve for x
    x = 10,850,993.60/3,698.12
  6. Step 6: Final answer
    x = 2,934.19

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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.