Home / 5,149.50-7,725.54-2,378.11

Finding the Fourth Proportional to 5,149.50, 7,725.54 and 2,378.11

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Solution

The fourth proportional to 5,149.50, 7,725.54 and 2,378.11 is: 3,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.50 : 7,725.54 = 2,378.11 : x
  2. Step 2: Convert to fraction form
    5,149.50/7,725.54 = 2,378.11/x
  3. Step 3: Cross multiply
    5,149.50x = 7,725.54 × 2,378.11
  4. Step 4: Simplify right side
    5,149.50x = 18,372,183.93
  5. Step 5: Solve for x
    x = 18,372,183.93/5,149.50
  6. Step 6: Final answer
    x = 3,567.76

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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.