Home / 3,890.56-5,831.20-2,243.70

Finding the Fourth Proportional to 3,890.56, 5,831.20 and 2,243.70

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Solution

The fourth proportional to 3,890.56, 5,831.20 and 2,243.70 is: 3,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.56 : 5,831.20 = 2,243.70 : x
  2. Step 2: Convert to fraction form
    3,890.56/5,831.20 = 2,243.70/x
  3. Step 3: Cross multiply
    3,890.56x = 5,831.20 × 2,243.70
  4. Step 4: Simplify right side
    3,890.56x = 13,083,463.44
  5. Step 5: Solve for x
    x = 13,083,463.44/3,890.56
  6. Step 6: Final answer
    x = 3,362.87

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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.