Home / 3,453.44-4,763.78-2,126.21

Finding the Fourth Proportional to 3,453.44, 4,763.78 and 2,126.21

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Solution

The fourth proportional to 3,453.44, 4,763.78 and 2,126.21 is: 2,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.44 : 4,763.78 = 2,126.21 : x
  2. Step 2: Convert to fraction form
    3,453.44/4,763.78 = 2,126.21/x
  3. Step 3: Cross multiply
    3,453.44x = 4,763.78 × 2,126.21
  4. Step 4: Simplify right side
    3,453.44x = 10,128,778.17
  5. Step 5: Solve for x
    x = 10,128,778.17/3,453.44
  6. Step 6: Final answer
    x = 2,932.95

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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.