Home / 5,429.44-8,138.46-2,308.72

Finding the Fourth Proportional to 5,429.44, 8,138.46 and 2,308.72

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Solution

The fourth proportional to 5,429.44, 8,138.46 and 2,308.72 is: 3,460.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.44 : 8,138.46 = 2,308.72 : x
  2. Step 2: Convert to fraction form
    5,429.44/8,138.46 = 2,308.72/x
  3. Step 3: Cross multiply
    5,429.44x = 8,138.46 × 2,308.72
  4. Step 4: Simplify right side
    5,429.44x = 18,789,425.37
  5. Step 5: Solve for x
    x = 18,789,425.37/5,429.44
  6. Step 6: Final answer
    x = 3,460.66

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1.5x scale

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.