Home / 5,390.96-8,083.54-3,170.56

Finding the Fourth Proportional to 5,390.96, 8,083.54 and 3,170.56

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Solution

The fourth proportional to 5,390.96, 8,083.54 and 3,170.56 is: 4,754.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.96 : 8,083.54 = 3,170.56 : x
  2. Step 2: Convert to fraction form
    5,390.96/8,083.54 = 3,170.56/x
  3. Step 3: Cross multiply
    5,390.96x = 8,083.54 × 3,170.56
  4. Step 4: Simplify right side
    5,390.96x = 25,629,348.58
  5. Step 5: Solve for x
    x = 25,629,348.58/5,390.96
  6. Step 6: Final answer
    x = 4,754.13

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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.