Home / 3,964.14-5,470.44-2,195.70

Finding the Fourth Proportional to 3,964.14, 5,470.44 and 2,195.70

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Solution

The fourth proportional to 3,964.14, 5,470.44 and 2,195.70 is: 3,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.14 : 5,470.44 = 2,195.70 : x
  2. Step 2: Convert to fraction form
    3,964.14/5,470.44 = 2,195.70/x
  3. Step 3: Cross multiply
    3,964.14x = 5,470.44 × 2,195.70
  4. Step 4: Simplify right side
    3,964.14x = 12,011,445.11
  5. Step 5: Solve for x
    x = 12,011,445.11/3,964.14
  6. Step 6: Final answer
    x = 3,030.03

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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.