Home / 5,355.31-8,031.40-2,067.64

Finding the Fourth Proportional to 5,355.31, 8,031.40 and 2,067.64

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Solution

The fourth proportional to 5,355.31, 8,031.40 and 2,067.64 is: 3,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.31 : 8,031.40 = 2,067.64 : x
  2. Step 2: Convert to fraction form
    5,355.31/8,031.40 = 2,067.64/x
  3. Step 3: Cross multiply
    5,355.31x = 8,031.40 × 2,067.64
  4. Step 4: Simplify right side
    5,355.31x = 16,606,043.90
  5. Step 5: Solve for x
    x = 16,606,043.90/5,355.31
  6. Step 6: Final answer
    x = 3,100.86

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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.