Home / 5,431.25-8,146.97-2,144.32

Finding the Fourth Proportional to 5,431.25, 8,146.97 and 2,144.32

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Solution

The fourth proportional to 5,431.25, 8,146.97 and 2,144.32 is: 3,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.25 : 8,146.97 = 2,144.32 : x
  2. Step 2: Convert to fraction form
    5,431.25/8,146.97 = 2,144.32/x
  3. Step 3: Cross multiply
    5,431.25x = 8,146.97 × 2,144.32
  4. Step 4: Simplify right side
    5,431.25x = 17,469,710.71
  5. Step 5: Solve for x
    x = 17,469,710.71/5,431.25
  6. Step 6: Final answer
    x = 3,216.52

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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.