Home / 7,868.45-11,798.61-2,321.09

Finding the Fourth Proportional to 7,868.45, 11,798.61 and 2,321.09

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Solution

The fourth proportional to 7,868.45, 11,798.61 and 2,321.09 is: 3,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.45 : 11,798.61 = 2,321.09 : x
  2. Step 2: Convert to fraction form
    7,868.45/11,798.61 = 2,321.09/x
  3. Step 3: Cross multiply
    7,868.45x = 11,798.61 × 2,321.09
  4. Step 4: Simplify right side
    7,868.45x = 27,385,635.68
  5. Step 5: Solve for x
    x = 27,385,635.68/7,868.45
  6. Step 6: Final answer
    x = 3,480.44

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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.