Home / 5,629.99-8,440.68-3,408.34

Finding the Fourth Proportional to 5,629.99, 8,440.68 and 3,408.34

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Solution

The fourth proportional to 5,629.99, 8,440.68 and 3,408.34 is: 5,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.99 : 8,440.68 = 3,408.34 : x
  2. Step 2: Convert to fraction form
    5,629.99/8,440.68 = 3,408.34/x
  3. Step 3: Cross multiply
    5,629.99x = 8,440.68 × 3,408.34
  4. Step 4: Simplify right side
    5,629.99x = 28,768,707.27
  5. Step 5: Solve for x
    x = 28,768,707.27/5,629.99
  6. Step 6: Final answer
    x = 5,109.90

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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.