Home / 6,742.54-10,100.46-3,179.78

Finding the Fourth Proportional to 6,742.54, 10,100.46 and 3,179.78

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Solution

The fourth proportional to 6,742.54, 10,100.46 and 3,179.78 is: 4,763.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.54 : 10,100.46 = 3,179.78 : x
  2. Step 2: Convert to fraction form
    6,742.54/10,100.46 = 3,179.78/x
  3. Step 3: Cross multiply
    6,742.54x = 10,100.46 × 3,179.78
  4. Step 4: Simplify right side
    6,742.54x = 32,117,240.70
  5. Step 5: Solve for x
    x = 32,117,240.70/6,742.54
  6. Step 6: Final answer
    x = 4,763.37

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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.