Home / 3,934.51-5,429.40-2,255.56

Finding the Fourth Proportional to 3,934.51, 5,429.40 and 2,255.56

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Solution

The fourth proportional to 3,934.51, 5,429.40 and 2,255.56 is: 3,112.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.51 : 5,429.40 = 2,255.56 : x
  2. Step 2: Convert to fraction form
    3,934.51/5,429.40 = 2,255.56/x
  3. Step 3: Cross multiply
    3,934.51x = 5,429.40 × 2,255.56
  4. Step 4: Simplify right side
    3,934.51x = 12,246,337.46
  5. Step 5: Solve for x
    x = 12,246,337.46/3,934.51
  6. Step 6: Final answer
    x = 3,112.54

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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.