Home / 5,640.14-8,462.21-2,519.86

Finding the Fourth Proportional to 5,640.14, 8,462.21 and 2,519.86

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Solution

The fourth proportional to 5,640.14, 8,462.21 and 2,519.86 is: 3,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.14 : 8,462.21 = 2,519.86 : x
  2. Step 2: Convert to fraction form
    5,640.14/8,462.21 = 2,519.86/x
  3. Step 3: Cross multiply
    5,640.14x = 8,462.21 × 2,519.86
  4. Step 4: Simplify right side
    5,640.14x = 21,323,584.49
  5. Step 5: Solve for x
    x = 21,323,584.49/5,640.14
  6. Step 6: Final answer
    x = 3,780.68

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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.