Home / 3,924.48-5,415.81-2,245.79

Finding the Fourth Proportional to 3,924.48, 5,415.81 and 2,245.79

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Solution

The fourth proportional to 3,924.48, 5,415.81 and 2,245.79 is: 3,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.48 : 5,415.81 = 2,245.79 : x
  2. Step 2: Convert to fraction form
    3,924.48/5,415.81 = 2,245.79/x
  3. Step 3: Cross multiply
    3,924.48x = 5,415.81 × 2,245.79
  4. Step 4: Simplify right side
    3,924.48x = 12,162,744.86
  5. Step 5: Solve for x
    x = 12,162,744.86/3,924.48
  6. Step 6: Final answer
    x = 3,099.20

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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.