Home / 3,901.50-5,383.28-2,223.18

Finding the Fourth Proportional to 3,901.50, 5,383.28 and 2,223.18

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Solution

The fourth proportional to 3,901.50, 5,383.28 and 2,223.18 is: 3,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.50 : 5,383.28 = 2,223.18 : x
  2. Step 2: Convert to fraction form
    3,901.50/5,383.28 = 2,223.18/x
  3. Step 3: Cross multiply
    3,901.50x = 5,383.28 × 2,223.18
  4. Step 4: Simplify right side
    3,901.50x = 11,968,000.43
  5. Step 5: Solve for x
    x = 11,968,000.43/3,901.50
  6. Step 6: Final answer
    x = 3,067.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.