Home / 5,709.57-7,879.35-3,191.95

Finding the Fourth Proportional to 5,709.57, 7,879.35 and 3,191.95

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Solution

The fourth proportional to 5,709.57, 7,879.35 and 3,191.95 is: 4,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.57 : 7,879.35 = 3,191.95 : x
  2. Step 2: Convert to fraction form
    5,709.57/7,879.35 = 3,191.95/x
  3. Step 3: Cross multiply
    5,709.57x = 7,879.35 × 3,191.95
  4. Step 4: Simplify right side
    5,709.57x = 25,150,491.23
  5. Step 5: Solve for x
    x = 25,150,491.23/5,709.57
  6. Step 6: Final answer
    x = 4,404.97

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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.