Home / 5,416.10-8,126.09-2,131.55

Finding the Fourth Proportional to 5,416.10, 8,126.09 and 2,131.55

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Solution

The fourth proportional to 5,416.10, 8,126.09 and 2,131.55 is: 3,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.10 : 8,126.09 = 2,131.55 : x
  2. Step 2: Convert to fraction form
    5,416.10/8,126.09 = 2,131.55/x
  3. Step 3: Cross multiply
    5,416.10x = 8,126.09 × 2,131.55
  4. Step 4: Simplify right side
    5,416.10x = 17,321,156.48
  5. Step 5: Solve for x
    x = 17,321,156.48/5,416.10
  6. Step 6: Final answer
    x = 3,198.09

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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.