Home / 3,924.08-5,415.12-2,245.56

Finding the Fourth Proportional to 3,924.08, 5,415.12 and 2,245.56

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Solution

The fourth proportional to 3,924.08, 5,415.12 and 2,245.56 is: 3,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.08 : 5,415.12 = 2,245.56 : x
  2. Step 2: Convert to fraction form
    3,924.08/5,415.12 = 2,245.56/x
  3. Step 3: Cross multiply
    3,924.08x = 5,415.12 × 2,245.56
  4. Step 4: Simplify right side
    3,924.08x = 12,159,976.87
  5. Step 5: Solve for x
    x = 12,159,976.87/3,924.08
  6. Step 6: Final answer
    x = 3,098.81

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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.