Home / 2,226.06-3,071.81-1,281.63

Finding the Fourth Proportional to 2,226.06, 3,071.81 and 1,281.63

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Solution

The fourth proportional to 2,226.06, 3,071.81 and 1,281.63 is: 1,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.06 : 3,071.81 = 1,281.63 : x
  2. Step 2: Convert to fraction form
    2,226.06/3,071.81 = 1,281.63/x
  3. Step 3: Cross multiply
    2,226.06x = 3,071.81 × 1,281.63
  4. Step 4: Simplify right side
    2,226.06x = 3,936,917.44
  5. Step 5: Solve for x
    x = 3,936,917.44/2,226.06
  6. Step 6: Final answer
    x = 1,768.56

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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.