Home / 3,221.54-4,831.92-1,140.96

Finding the Fourth Proportional to 3,221.54, 4,831.92 and 1,140.96

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Solution

The fourth proportional to 3,221.54, 4,831.92 and 1,140.96 is: 1,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.54 : 4,831.92 = 1,140.96 : x
  2. Step 2: Convert to fraction form
    3,221.54/4,831.92 = 1,140.96/x
  3. Step 3: Cross multiply
    3,221.54x = 4,831.92 × 1,140.96
  4. Step 4: Simplify right side
    3,221.54x = 5,513,027.44
  5. Step 5: Solve for x
    x = 5,513,027.44/3,221.54
  6. Step 6: Final answer
    x = 1,711.30

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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.