Home / 3,099.28-4,250.78-2,749.36

Finding the Fourth Proportional to 3,099.28, 4,250.78 and 2,749.36

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Solution

The fourth proportional to 3,099.28, 4,250.78 and 2,749.36 is: 3,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.28 : 4,250.78 = 2,749.36 : x
  2. Step 2: Convert to fraction form
    3,099.28/4,250.78 = 2,749.36/x
  3. Step 3: Cross multiply
    3,099.28x = 4,250.78 × 2,749.36
  4. Step 4: Simplify right side
    3,099.28x = 11,686,924.50
  5. Step 5: Solve for x
    x = 11,686,924.50/3,099.28
  6. Step 6: Final answer
    x = 3,770.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.