Home / 7,628.24-11,440.51-2,081.61

Finding the Fourth Proportional to 7,628.24, 11,440.51 and 2,081.61

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Solution

The fourth proportional to 7,628.24, 11,440.51 and 2,081.61 is: 3,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.24 : 11,440.51 = 2,081.61 : x
  2. Step 2: Convert to fraction form
    7,628.24/11,440.51 = 2,081.61/x
  3. Step 3: Cross multiply
    7,628.24x = 11,440.51 × 2,081.61
  4. Step 4: Simplify right side
    7,628.24x = 23,814,631.92
  5. Step 5: Solve for x
    x = 23,814,631.92/7,628.24
  6. Step 6: Final answer
    x = 3,121.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.