Home / 7,984.02-11,977.92-3,822.84

Finding the Fourth Proportional to 7,984.02, 11,977.92 and 3,822.84

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Solution

The fourth proportional to 7,984.02, 11,977.92 and 3,822.84 is: 5,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.02 : 11,977.92 = 3,822.84 : x
  2. Step 2: Convert to fraction form
    7,984.02/11,977.92 = 3,822.84/x
  3. Step 3: Cross multiply
    7,984.02x = 11,977.92 × 3,822.84
  4. Step 4: Simplify right side
    7,984.02x = 45,789,671.69
  5. Step 5: Solve for x
    x = 45,789,671.69/7,984.02
  6. Step 6: Final answer
    x = 5,735.16

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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.