Home / 5,979.60-8,965.35-3,168.90

Finding the Fourth Proportional to 5,979.60, 8,965.35 and 3,168.90

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Solution

The fourth proportional to 5,979.60, 8,965.35 and 3,168.90 is: 4,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.60 : 8,965.35 = 3,168.90 : x
  2. Step 2: Convert to fraction form
    5,979.60/8,965.35 = 3,168.90/x
  3. Step 3: Cross multiply
    5,979.60x = 8,965.35 × 3,168.90
  4. Step 4: Simplify right side
    5,979.60x = 28,410,297.62
  5. Step 5: Solve for x
    x = 28,410,297.62/5,979.60
  6. Step 6: Final answer
    x = 4,751.20

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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.