Home / 3,489.12-5,228.44-3,159.84

Finding the Fourth Proportional to 3,489.12, 5,228.44 and 3,159.84

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Solution

The fourth proportional to 3,489.12, 5,228.44 and 3,159.84 is: 4,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.12 : 5,228.44 = 3,159.84 : x
  2. Step 2: Convert to fraction form
    3,489.12/5,228.44 = 3,159.84/x
  3. Step 3: Cross multiply
    3,489.12x = 5,228.44 × 3,159.84
  4. Step 4: Simplify right side
    3,489.12x = 16,521,033.85
  5. Step 5: Solve for x
    x = 16,521,033.85/3,489.12
  6. Step 6: Final answer
    x = 4,735.01

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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.