Home / 3,794.40-5,235.36-2,221.92

Finding the Fourth Proportional to 3,794.40, 5,235.36 and 2,221.92

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Solution

The fourth proportional to 3,794.40, 5,235.36 and 2,221.92 is: 3,065.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,794.40 : 5,235.36 = 2,221.92 : x
  2. Step 2: Convert to fraction form
    3,794.40/5,235.36 = 2,221.92/x
  3. Step 3: Cross multiply
    3,794.40x = 5,235.36 × 2,221.92
  4. Step 4: Simplify right side
    3,794.40x = 11,632,551.09
  5. Step 5: Solve for x
    x = 11,632,551.09/3,794.40
  6. Step 6: Final answer
    x = 3,065.72

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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.