Home / 3,126.78-4,684.90-2,200.70

Finding the Fourth Proportional to 3,126.78, 4,684.90 and 2,200.70

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Solution

The fourth proportional to 3,126.78, 4,684.90 and 2,200.70 is: 3,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.78 : 4,684.90 = 2,200.70 : x
  2. Step 2: Convert to fraction form
    3,126.78/4,684.90 = 2,200.70/x
  3. Step 3: Cross multiply
    3,126.78x = 4,684.90 × 2,200.70
  4. Step 4: Simplify right side
    3,126.78x = 10,310,059.43
  5. Step 5: Solve for x
    x = 10,310,059.43/3,126.78
  6. Step 6: Final answer
    x = 3,297.34

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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.