Home / 3,099.32-4,274.70-2,105.36

Finding the Fourth Proportional to 3,099.32, 4,274.70 and 2,105.36

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Solution

The fourth proportional to 3,099.32, 4,274.70 and 2,105.36 is: 2,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.32 : 4,274.70 = 2,105.36 : x
  2. Step 2: Convert to fraction form
    3,099.32/4,274.70 = 2,105.36/x
  3. Step 3: Cross multiply
    3,099.32x = 4,274.70 × 2,105.36
  4. Step 4: Simplify right side
    3,099.32x = 8,999,782.39
  5. Step 5: Solve for x
    x = 8,999,782.39/3,099.32
  6. Step 6: Final answer
    x = 2,903.79

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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.