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Finding the Fourth Proportional to 3,447.81, 4,757.76 and 1,955.79

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Solution

The fourth proportional to 3,447.81, 4,757.76 and 1,955.79 is: 2,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.81 : 4,757.76 = 1,955.79 : x
  2. Step 2: Convert to fraction form
    3,447.81/4,757.76 = 1,955.79/x
  3. Step 3: Cross multiply
    3,447.81x = 4,757.76 × 1,955.79
  4. Step 4: Simplify right side
    3,447.81x = 9,305,179.43
  5. Step 5: Solve for x
    x = 9,305,179.43/3,447.81
  6. Step 6: Final answer
    x = 2,698.87

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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.