Home / 5,425.20-8,134.16-2,136.60

Finding the Fourth Proportional to 5,425.20, 8,134.16 and 2,136.60

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Solution

The fourth proportional to 5,425.20, 8,134.16 and 2,136.60 is: 3,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.20 : 8,134.16 = 2,136.60 : x
  2. Step 2: Convert to fraction form
    5,425.20/8,134.16 = 2,136.60/x
  3. Step 3: Cross multiply
    5,425.20x = 8,134.16 × 2,136.60
  4. Step 4: Simplify right side
    5,425.20x = 17,379,435.57
  5. Step 5: Solve for x
    x = 17,379,435.57/5,425.20
  6. Step 6: Final answer
    x = 3,203.46

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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.