Home / 3,964.09-5,470.56-2,195.66

Finding the Fourth Proportional to 3,964.09, 5,470.56 and 2,195.66

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Solution

The fourth proportional to 3,964.09, 5,470.56 and 2,195.66 is: 3,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.09 : 5,470.56 = 2,195.66 : x
  2. Step 2: Convert to fraction form
    3,964.09/5,470.56 = 2,195.66/x
  3. Step 3: Cross multiply
    3,964.09x = 5,470.56 × 2,195.66
  4. Step 4: Simplify right side
    3,964.09x = 12,011,489.77
  5. Step 5: Solve for x
    x = 12,011,489.77/3,964.09
  6. Step 6: Final answer
    x = 3,030.07

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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.