Home / 4,256.21-5,871.96-3,139.83

Finding the Fourth Proportional to 4,256.21, 5,871.96 and 3,139.83

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Solution

The fourth proportional to 4,256.21, 5,871.96 and 3,139.83 is: 4,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.21 : 5,871.96 = 3,139.83 : x
  2. Step 2: Convert to fraction form
    4,256.21/5,871.96 = 3,139.83/x
  3. Step 3: Cross multiply
    4,256.21x = 5,871.96 × 3,139.83
  4. Step 4: Simplify right side
    4,256.21x = 18,436,956.17
  5. Step 5: Solve for x
    x = 18,436,956.17/4,256.21
  6. Step 6: Final answer
    x = 4,331.78

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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.