Home / 3,973.20-5,481.24-2,400.36

Finding the Fourth Proportional to 3,973.20, 5,481.24 and 2,400.36

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Solution

The fourth proportional to 3,973.20, 5,481.24 and 2,400.36 is: 3,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.20 : 5,481.24 = 2,400.36 : x
  2. Step 2: Convert to fraction form
    3,973.20/5,481.24 = 2,400.36/x
  3. Step 3: Cross multiply
    3,973.20x = 5,481.24 × 2,400.36
  4. Step 4: Simplify right side
    3,973.20x = 13,156,949.25
  5. Step 5: Solve for x
    x = 13,156,949.25/3,973.20
  6. Step 6: Final answer
    x = 3,311.42

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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.