Home / 3,981.00-5,977.67-2,135.72

Finding the Fourth Proportional to 3,981.00, 5,977.67 and 2,135.72

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Solution

The fourth proportional to 3,981.00, 5,977.67 and 2,135.72 is: 3,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.00 : 5,977.67 = 2,135.72 : x
  2. Step 2: Convert to fraction form
    3,981.00/5,977.67 = 2,135.72/x
  3. Step 3: Cross multiply
    3,981.00x = 5,977.67 × 2,135.72
  4. Step 4: Simplify right side
    3,981.00x = 12,766,600.01
  5. Step 5: Solve for x
    x = 12,766,600.01/3,981.00
  6. Step 6: Final answer
    x = 3,206.88

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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.