Home / 7,629.80-11,441.68-3,247.40

Finding the Fourth Proportional to 7,629.80, 11,441.68 and 3,247.40

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Solution

The fourth proportional to 7,629.80, 11,441.68 and 3,247.40 is: 4,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.80 : 11,441.68 = 3,247.40 : x
  2. Step 2: Convert to fraction form
    7,629.80/11,441.68 = 3,247.40/x
  3. Step 3: Cross multiply
    7,629.80x = 11,441.68 × 3,247.40
  4. Step 4: Simplify right side
    7,629.80x = 37,155,711.63
  5. Step 5: Solve for x
    x = 37,155,711.63/7,629.80
  6. Step 6: Final answer
    x = 4,869.81

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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.