Home / 5,439.37-8,146.90-2,508.79

Finding the Fourth Proportional to 5,439.37, 8,146.90 and 2,508.79

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Solution

The fourth proportional to 5,439.37, 8,146.90 and 2,508.79 is: 3,757.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.37 : 8,146.90 = 2,508.79 : x
  2. Step 2: Convert to fraction form
    5,439.37/8,146.90 = 2,508.79/x
  3. Step 3: Cross multiply
    5,439.37x = 8,146.90 × 2,508.79
  4. Step 4: Simplify right side
    5,439.37x = 20,438,861.25
  5. Step 5: Solve for x
    x = 20,438,861.25/5,439.37
  6. Step 6: Final answer
    x = 3,757.58

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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.