Home / 5,676.42-7,833.64-3,438.72

Finding the Fourth Proportional to 5,676.42, 7,833.64 and 3,438.72

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Solution

The fourth proportional to 5,676.42, 7,833.64 and 3,438.72 is: 4,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.42 : 7,833.64 = 3,438.72 : x
  2. Step 2: Convert to fraction form
    5,676.42/7,833.64 = 3,438.72/x
  3. Step 3: Cross multiply
    5,676.42x = 7,833.64 × 3,438.72
  4. Step 4: Simplify right side
    5,676.42x = 26,937,694.54
  5. Step 5: Solve for x
    x = 26,937,694.54/5,676.42
  6. Step 6: Final answer
    x = 4,745.54

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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.