Home / 3,221.03-4,831.39-1,887.57

Finding the Fourth Proportional to 3,221.03, 4,831.39 and 1,887.57

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Solution

The fourth proportional to 3,221.03, 4,831.39 and 1,887.57 is: 2,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.03 : 4,831.39 = 1,887.57 : x
  2. Step 2: Convert to fraction form
    3,221.03/4,831.39 = 1,887.57/x
  3. Step 3: Cross multiply
    3,221.03x = 4,831.39 × 1,887.57
  4. Step 4: Simplify right side
    3,221.03x = 9,119,563.99
  5. Step 5: Solve for x
    x = 9,119,563.99/3,221.03
  6. Step 6: Final answer
    x = 2,831.26

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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.