Home / 3,206.16-4,809-1,906.50

Finding the Fourth Proportional to 3,206.16, 4,809 and 1,906.50

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Solution

The fourth proportional to 3,206.16, 4,809 and 1,906.50 is: 2,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.16 : 4,809 = 1,906.50 : x
  2. Step 2: Convert to fraction form
    3,206.16/4,809 = 1,906.50/x
  3. Step 3: Cross multiply
    3,206.16x = 4,809 × 1,906.50
  4. Step 4: Simplify right side
    3,206.16x = 9,168,358.50
  5. Step 5: Solve for x
    x = 9,168,358.50/3,206.16
  6. Step 6: Final answer
    x = 2,859.61

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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.