Home / 3,291.12-4,928.04-2,311.92

Finding the Fourth Proportional to 3,291.12, 4,928.04 and 2,311.92

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Solution

The fourth proportional to 3,291.12, 4,928.04 and 2,311.92 is: 3,461.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.12 : 4,928.04 = 2,311.92 : x
  2. Step 2: Convert to fraction form
    3,291.12/4,928.04 = 2,311.92/x
  3. Step 3: Cross multiply
    3,291.12x = 4,928.04 × 2,311.92
  4. Step 4: Simplify right side
    3,291.12x = 11,393,234.24
  5. Step 5: Solve for x
    x = 11,393,234.24/3,291.12
  6. Step 6: Final answer
    x = 3,461.81

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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.