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Finding the Fourth Proportional to 3,427.21, 4,729.21 and 1,934.88

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Solution

The fourth proportional to 3,427.21, 4,729.21 and 1,934.88 is: 2,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.21 : 4,729.21 = 1,934.88 : x
  2. Step 2: Convert to fraction form
    3,427.21/4,729.21 = 1,934.88/x
  3. Step 3: Cross multiply
    3,427.21x = 4,729.21 × 1,934.88
  4. Step 4: Simplify right side
    3,427.21x = 9,150,453.84
  5. Step 5: Solve for x
    x = 9,150,453.84/3,427.21
  6. Step 6: Final answer
    x = 2,669.94

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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.