Home / 3,964.32-5,470.68-2,195.91

Finding the Fourth Proportional to 3,964.32, 5,470.68 and 2,195.91

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Solution

The fourth proportional to 3,964.32, 5,470.68 and 2,195.91 is: 3,030.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.32 : 5,470.68 = 2,195.91 : x
  2. Step 2: Convert to fraction form
    3,964.32/5,470.68 = 2,195.91/x
  3. Step 3: Cross multiply
    3,964.32x = 5,470.68 × 2,195.91
  4. Step 4: Simplify right side
    3,964.32x = 12,013,120.92
  5. Step 5: Solve for x
    x = 12,013,120.92/3,964.32
  6. Step 6: Final answer
    x = 3,030.31

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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.