Home / 3,905.24-5,389.22-2,226.65

Finding the Fourth Proportional to 3,905.24, 5,389.22 and 2,226.65

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Solution

The fourth proportional to 3,905.24, 5,389.22 and 2,226.65 is: 3,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.24 : 5,389.22 = 2,226.65 : x
  2. Step 2: Convert to fraction form
    3,905.24/5,389.22 = 2,226.65/x
  3. Step 3: Cross multiply
    3,905.24x = 5,389.22 × 2,226.65
  4. Step 4: Simplify right side
    3,905.24x = 11,999,885.33
  5. Step 5: Solve for x
    x = 11,999,885.33/3,905.24
  6. Step 6: Final answer
    x = 3,072.77

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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.