Home / 3,964.39-5,470.35-2,195.74

Finding the Fourth Proportional to 3,964.39, 5,470.35 and 2,195.74

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Solution

The fourth proportional to 3,964.39, 5,470.35 and 2,195.74 is: 3,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.39 : 5,470.35 = 2,195.74 : x
  2. Step 2: Convert to fraction form
    3,964.39/5,470.35 = 2,195.74/x
  3. Step 3: Cross multiply
    3,964.39x = 5,470.35 × 2,195.74
  4. Step 4: Simplify right side
    3,964.39x = 12,011,466.31
  5. Step 5: Solve for x
    x = 12,011,466.31/3,964.39
  6. Step 6: Final answer
    x = 3,029.84

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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.