Home / 3,826.15-5,725.86-3,312.21

Finding the Fourth Proportional to 3,826.15, 5,725.86 and 3,312.21

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Solution

The fourth proportional to 3,826.15, 5,725.86 and 3,312.21 is: 4,956.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.15 : 5,725.86 = 3,312.21 : x
  2. Step 2: Convert to fraction form
    3,826.15/5,725.86 = 3,312.21/x
  3. Step 3: Cross multiply
    3,826.15x = 5,725.86 × 3,312.21
  4. Step 4: Simplify right side
    3,826.15x = 18,965,250.75
  5. Step 5: Solve for x
    x = 18,965,250.75/3,826.15
  6. Step 6: Final answer
    x = 4,956.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.