Home / 3,839.97-5,299.37-2,347.67

Finding the Fourth Proportional to 3,839.97, 5,299.37 and 2,347.67

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Solution

The fourth proportional to 3,839.97, 5,299.37 and 2,347.67 is: 3,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.97 : 5,299.37 = 2,347.67 : x
  2. Step 2: Convert to fraction form
    3,839.97/5,299.37 = 2,347.67/x
  3. Step 3: Cross multiply
    3,839.97x = 5,299.37 × 2,347.67
  4. Step 4: Simplify right side
    3,839.97x = 12,441,133.73
  5. Step 5: Solve for x
    x = 12,441,133.73/3,839.97
  6. Step 6: Final answer
    x = 3,239.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.