Home / 2,628.16-3,626.76-1,449.21

Finding the Fourth Proportional to 2,628.16, 3,626.76 and 1,449.21

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Solution

The fourth proportional to 2,628.16, 3,626.76 and 1,449.21 is: 1,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.16 : 3,626.76 = 1,449.21 : x
  2. Step 2: Convert to fraction form
    2,628.16/3,626.76 = 1,449.21/x
  3. Step 3: Cross multiply
    2,628.16x = 3,626.76 × 1,449.21
  4. Step 4: Simplify right side
    2,628.16x = 5,255,936.86
  5. Step 5: Solve for x
    x = 5,255,936.86/2,628.16
  6. Step 6: Final answer
    x = 1,999.85

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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.