Home / 5,431.34-8,149.44-3,122.84

Finding the Fourth Proportional to 5,431.34, 8,149.44 and 3,122.84

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Solution

The fourth proportional to 5,431.34, 8,149.44 and 3,122.84 is: 4,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.34 : 8,149.44 = 3,122.84 : x
  2. Step 2: Convert to fraction form
    5,431.34/8,149.44 = 3,122.84/x
  3. Step 3: Cross multiply
    5,431.34x = 8,149.44 × 3,122.84
  4. Step 4: Simplify right side
    5,431.34x = 25,449,397.21
  5. Step 5: Solve for x
    x = 25,449,397.21/5,431.34
  6. Step 6: Final answer
    x = 4,685.66

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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.