Home / 2,276.06-3,408.60-1,299.20

Finding the Fourth Proportional to 2,276.06, 3,408.60 and 1,299.20

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Solution

The fourth proportional to 2,276.06, 3,408.60 and 1,299.20 is: 1,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.06 : 3,408.60 = 1,299.20 : x
  2. Step 2: Convert to fraction form
    2,276.06/3,408.60 = 1,299.20/x
  3. Step 3: Cross multiply
    2,276.06x = 3,408.60 × 1,299.20
  4. Step 4: Simplify right side
    2,276.06x = 4,428,453.12
  5. Step 5: Solve for x
    x = 4,428,453.12/2,276.06
  6. Step 6: Final answer
    x = 1,945.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.