Home / 3,831.50-5,745.74-1,331.94

Finding the Fourth Proportional to 3,831.50, 5,745.74 and 1,331.94

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Solution

The fourth proportional to 3,831.50, 5,745.74 and 1,331.94 is: 1,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.50 : 5,745.74 = 1,331.94 : x
  2. Step 2: Convert to fraction form
    3,831.50/5,745.74 = 1,331.94/x
  3. Step 3: Cross multiply
    3,831.50x = 5,745.74 × 1,331.94
  4. Step 4: Simplify right side
    3,831.50x = 7,652,995.82
  5. Step 5: Solve for x
    x = 7,652,995.82/3,831.50
  6. Step 6: Final answer
    x = 1,997.39

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1.5x scale

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.