Home / 2,628.14-3,626.82-1,449.21

Finding the Fourth Proportional to 2,628.14, 3,626.82 and 1,449.21

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Solution

The fourth proportional to 2,628.14, 3,626.82 and 1,449.21 is: 1,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.14 : 3,626.82 = 1,449.21 : x
  2. Step 2: Convert to fraction form
    2,628.14/3,626.82 = 1,449.21/x
  3. Step 3: Cross multiply
    2,628.14x = 3,626.82 × 1,449.21
  4. Step 4: Simplify right side
    2,628.14x = 5,256,023.81
  5. Step 5: Solve for x
    x = 5,256,023.81/2,628.14
  6. Step 6: Final answer
    x = 1,999.91

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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.