Home / 3,934.76-5,429.73-2,255.81

Finding the Fourth Proportional to 3,934.76, 5,429.73 and 2,255.81

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Solution

The fourth proportional to 3,934.76, 5,429.73 and 2,255.81 is: 3,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.76 : 5,429.73 = 2,255.81 : x
  2. Step 2: Convert to fraction form
    3,934.76/5,429.73 = 2,255.81/x
  3. Step 3: Cross multiply
    3,934.76x = 5,429.73 × 2,255.81
  4. Step 4: Simplify right side
    3,934.76x = 12,248,439.23
  5. Step 5: Solve for x
    x = 12,248,439.23/3,934.76
  6. Step 6: Final answer
    x = 3,112.88

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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.