Home / 2,622.70-3,619.38-1,443.79

Finding the Fourth Proportional to 2,622.70, 3,619.38 and 1,443.79

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Solution

The fourth proportional to 2,622.70, 3,619.38 and 1,443.79 is: 1,992.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.70 : 3,619.38 = 1,443.79 : x
  2. Step 2: Convert to fraction form
    2,622.70/3,619.38 = 1,443.79/x
  3. Step 3: Cross multiply
    2,622.70x = 3,619.38 × 1,443.79
  4. Step 4: Simplify right side
    2,622.70x = 5,225,624.65
  5. Step 5: Solve for x
    x = 5,225,624.65/2,622.70
  6. Step 6: Final answer
    x = 1,992.46

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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.