Home / 3,247.70-4,481.25-1,921.46

Finding the Fourth Proportional to 3,247.70, 4,481.25 and 1,921.46

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Solution

The fourth proportional to 3,247.70, 4,481.25 and 1,921.46 is: 2,651.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.70 : 4,481.25 = 1,921.46 : x
  2. Step 2: Convert to fraction form
    3,247.70/4,481.25 = 1,921.46/x
  3. Step 3: Cross multiply
    3,247.70x = 4,481.25 × 1,921.46
  4. Step 4: Simplify right side
    3,247.70x = 8,610,542.63
  5. Step 5: Solve for x
    x = 8,610,542.63/3,247.70
  6. Step 6: Final answer
    x = 2,651.27

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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.