Home / 2,628.12-3,626.66-1,449.11

Finding the Fourth Proportional to 2,628.12, 3,626.66 and 1,449.11

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Solution

The fourth proportional to 2,628.12, 3,626.66 and 1,449.11 is: 1,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.12 : 3,626.66 = 1,449.11 : x
  2. Step 2: Convert to fraction form
    2,628.12/3,626.66 = 1,449.11/x
  3. Step 3: Cross multiply
    2,628.12x = 3,626.66 × 1,449.11
  4. Step 4: Simplify right side
    2,628.12x = 5,255,403.89
  5. Step 5: Solve for x
    x = 5,255,403.89/2,628.12
  6. Step 6: Final answer
    x = 1,999.68

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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.