Home / 5,195.12-7,792.68-2,879.60

Finding the Fourth Proportional to 5,195.12, 7,792.68 and 2,879.60

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Solution

The fourth proportional to 5,195.12, 7,792.68 and 2,879.60 is: 4,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.12 : 7,792.68 = 2,879.60 : x
  2. Step 2: Convert to fraction form
    5,195.12/7,792.68 = 2,879.60/x
  3. Step 3: Cross multiply
    5,195.12x = 7,792.68 × 2,879.60
  4. Step 4: Simplify right side
    5,195.12x = 22,439,801.33
  5. Step 5: Solve for x
    x = 22,439,801.33/5,195.12
  6. Step 6: Final answer
    x = 4,319.40

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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.