Home / 3,964.11-5,470.43-2,195.70

Finding the Fourth Proportional to 3,964.11, 5,470.43 and 2,195.70

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Solution

The fourth proportional to 3,964.11, 5,470.43 and 2,195.70 is: 3,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.11 : 5,470.43 = 2,195.70 : x
  2. Step 2: Convert to fraction form
    3,964.11/5,470.43 = 2,195.70/x
  3. Step 3: Cross multiply
    3,964.11x = 5,470.43 × 2,195.70
  4. Step 4: Simplify right side
    3,964.11x = 12,011,412.17
  5. Step 5: Solve for x
    x = 12,011,412.17/3,964.11
  6. Step 6: Final answer
    x = 3,030.04

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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.