Home / 3,928.56-5,421.22-2,357.52

Finding the Fourth Proportional to 3,928.56, 5,421.22 and 2,357.52

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Solution

The fourth proportional to 3,928.56, 5,421.22 and 2,357.52 is: 3,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.56 : 5,421.22 = 2,357.52 : x
  2. Step 2: Convert to fraction form
    3,928.56/5,421.22 = 2,357.52/x
  3. Step 3: Cross multiply
    3,928.56x = 5,421.22 × 2,357.52
  4. Step 4: Simplify right side
    3,928.56x = 12,780,634.57
  5. Step 5: Solve for x
    x = 12,780,634.57/3,928.56
  6. Step 6: Final answer
    x = 3,253.26

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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.