Home / 3,391.20-5,085.96-926.04

Finding the Fourth Proportional to 3,391.20, 5,085.96 and 926.04

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Solution

The fourth proportional to 3,391.20, 5,085.96 and 926.04 is: 1,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.20 : 5,085.96 = 926.04 : x
  2. Step 2: Convert to fraction form
    3,391.20/5,085.96 = 926.04/x
  3. Step 3: Cross multiply
    3,391.20x = 5,085.96 × 926.04
  4. Step 4: Simplify right side
    3,391.20x = 4,709,802.40
  5. Step 5: Solve for x
    x = 4,709,802.40/3,391.20
  6. Step 6: Final answer
    x = 1,388.83

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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.