Home / 2,226.04-3,071.68-1,231.18

Finding the Fourth Proportional to 2,226.04, 3,071.68 and 1,231.18

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Solution

The fourth proportional to 2,226.04, 3,071.68 and 1,231.18 is: 1,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.04 : 3,071.68 = 1,231.18 : x
  2. Step 2: Convert to fraction form
    2,226.04/3,071.68 = 1,231.18/x
  3. Step 3: Cross multiply
    2,226.04x = 3,071.68 × 1,231.18
  4. Step 4: Simplify right side
    2,226.04x = 3,781,790.98
  5. Step 5: Solve for x
    x = 3,781,790.98/2,226.04
  6. Step 6: Final answer
    x = 1,698.89

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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.