Home / 7,867.45-11,797.11-2,320.09

Finding the Fourth Proportional to 7,867.45, 11,797.11 and 2,320.09

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Solution

The fourth proportional to 7,867.45, 11,797.11 and 2,320.09 is: 3,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.45 : 11,797.11 = 2,320.09 : x
  2. Step 2: Convert to fraction form
    7,867.45/11,797.11 = 2,320.09/x
  3. Step 3: Cross multiply
    7,867.45x = 11,797.11 × 2,320.09
  4. Step 4: Simplify right side
    7,867.45x = 27,370,289.25
  5. Step 5: Solve for x
    x = 27,370,289.25/7,867.45
  6. Step 6: Final answer
    x = 3,478.93

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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.