Home / 3,190.70-4,394.36-2,748.44

Finding the Fourth Proportional to 3,190.70, 4,394.36 and 2,748.44

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Solution

The fourth proportional to 3,190.70, 4,394.36 and 2,748.44 is: 3,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.70 : 4,394.36 = 2,748.44 : x
  2. Step 2: Convert to fraction form
    3,190.70/4,394.36 = 2,748.44/x
  3. Step 3: Cross multiply
    3,190.70x = 4,394.36 × 2,748.44
  4. Step 4: Simplify right side
    3,190.70x = 12,077,599.08
  5. Step 5: Solve for x
    x = 12,077,599.08/3,190.70
  6. Step 6: Final answer
    x = 3,785.26

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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.