Home / 3,964.08-5,470.05-2,195.65

Finding the Fourth Proportional to 3,964.08, 5,470.05 and 2,195.65

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Solution

The fourth proportional to 3,964.08, 5,470.05 and 2,195.65 is: 3,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.08 : 5,470.05 = 2,195.65 : x
  2. Step 2: Convert to fraction form
    3,964.08/5,470.05 = 2,195.65/x
  3. Step 3: Cross multiply
    3,964.08x = 5,470.05 × 2,195.65
  4. Step 4: Simplify right side
    3,964.08x = 12,010,309.84
  5. Step 5: Solve for x
    x = 12,010,309.84/3,964.08
  6. Step 6: Final answer
    x = 3,029.78

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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.