Home / 2,620.30-3,930.45-1,796.07

Finding the Fourth Proportional to 2,620.30, 3,930.45 and 1,796.07

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Solution

The fourth proportional to 2,620.30, 3,930.45 and 1,796.07 is: 2,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.30 : 3,930.45 = 1,796.07 : x
  2. Step 2: Convert to fraction form
    2,620.30/3,930.45 = 1,796.07/x
  3. Step 3: Cross multiply
    2,620.30x = 3,930.45 × 1,796.07
  4. Step 4: Simplify right side
    2,620.30x = 7,059,376.39
  5. Step 5: Solve for x
    x = 7,059,376.39/2,620.30
  6. Step 6: Final answer
    x = 2,694.11

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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.