Home / 4,138.16-5,707.87-2,879.42

Finding the Fourth Proportional to 4,138.16, 5,707.87 and 2,879.42

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Solution

The fourth proportional to 4,138.16, 5,707.87 and 2,879.42 is: 3,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.16 : 5,707.87 = 2,879.42 : x
  2. Step 2: Convert to fraction form
    4,138.16/5,707.87 = 2,879.42/x
  3. Step 3: Cross multiply
    4,138.16x = 5,707.87 × 2,879.42
  4. Step 4: Simplify right side
    4,138.16x = 16,435,319.30
  5. Step 5: Solve for x
    x = 16,435,319.30/4,138.16
  6. Step 6: Final answer
    x = 3,971.65

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1.5x scale

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.