Home / 7,993.29-11,989.89-2,149.41

Finding the Fourth Proportional to 7,993.29, 11,989.89 and 2,149.41

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Solution

The fourth proportional to 7,993.29, 11,989.89 and 2,149.41 is: 3,224.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.29 : 11,989.89 = 2,149.41 : x
  2. Step 2: Convert to fraction form
    7,993.29/11,989.89 = 2,149.41/x
  3. Step 3: Cross multiply
    7,993.29x = 11,989.89 × 2,149.41
  4. Step 4: Simplify right side
    7,993.29x = 25,771,189.46
  5. Step 5: Solve for x
    x = 25,771,189.46/7,993.29
  6. Step 6: Final answer
    x = 3,224.10

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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.