Home / 3,722.46-5,583.60-911.31

Finding the Fourth Proportional to 3,722.46, 5,583.60 and 911.31

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Solution

The fourth proportional to 3,722.46, 5,583.60 and 911.31 is: 1,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.46 : 5,583.60 = 911.31 : x
  2. Step 2: Convert to fraction form
    3,722.46/5,583.60 = 911.31/x
  3. Step 3: Cross multiply
    3,722.46x = 5,583.60 × 911.31
  4. Step 4: Simplify right side
    3,722.46x = 5,088,390.52
  5. Step 5: Solve for x
    x = 5,088,390.52/3,722.46
  6. Step 6: Final answer
    x = 1,366.94

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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.