Home / 5,417.56-8,120.86-2,132.96

Finding the Fourth Proportional to 5,417.56, 8,120.86 and 2,132.96

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Solution

The fourth proportional to 5,417.56, 8,120.86 and 2,132.96 is: 3,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.56 : 8,120.86 = 2,132.96 : x
  2. Step 2: Convert to fraction form
    5,417.56/8,120.86 = 2,132.96/x
  3. Step 3: Cross multiply
    5,417.56x = 8,120.86 × 2,132.96
  4. Step 4: Simplify right side
    5,417.56x = 17,321,469.55
  5. Step 5: Solve for x
    x = 17,321,469.55/5,417.56
  6. Step 6: Final answer
    x = 3,197.28

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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.