Home / 5,920-8,169.60-3,436

Finding the Fourth Proportional to 5,920, 8,169.60 and 3,436

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Solution

The fourth proportional to 5,920, 8,169.60 and 3,436 is: 4,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920 : 8,169.60 = 3,436 : x
  2. Step 2: Convert to fraction form
    5,920/8,169.60 = 3,436/x
  3. Step 3: Cross multiply
    5,920x = 8,169.60 × 3,436
  4. Step 4: Simplify right side
    5,920x = 28,070,745.60
  5. Step 5: Solve for x
    x = 28,070,745.60/5,920
  6. Step 6: Final answer
    x = 4,741.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.