Home / 2,628.31-3,626.81-1,619.86

Finding the Fourth Proportional to 2,628.31, 3,626.81 and 1,619.86

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Solution

The fourth proportional to 2,628.31, 3,626.81 and 1,619.86 is: 2,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.31 : 3,626.81 = 1,619.86 : x
  2. Step 2: Convert to fraction form
    2,628.31/3,626.81 = 1,619.86/x
  3. Step 3: Cross multiply
    2,628.31x = 3,626.81 × 1,619.86
  4. Step 4: Simplify right side
    2,628.31x = 5,874,898.21
  5. Step 5: Solve for x
    x = 5,874,898.21/2,628.31
  6. Step 6: Final answer
    x = 2,235.24

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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.