Home / 3,964.19-5,470.34-2,195.69

Finding the Fourth Proportional to 3,964.19, 5,470.34 and 2,195.69

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Solution

The fourth proportional to 3,964.19, 5,470.34 and 2,195.69 is: 3,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.19 : 5,470.34 = 2,195.69 : x
  2. Step 2: Convert to fraction form
    3,964.19/5,470.34 = 2,195.69/x
  3. Step 3: Cross multiply
    3,964.19x = 5,470.34 × 2,195.69
  4. Step 4: Simplify right side
    3,964.19x = 12,011,132.50
  5. Step 5: Solve for x
    x = 12,011,132.50/3,964.19
  6. Step 6: Final answer
    x = 3,029.91

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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.