Home / 6,529.20-9,790.56-3,408.72

Finding the Fourth Proportional to 6,529.20, 9,790.56 and 3,408.72

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Solution

The fourth proportional to 6,529.20, 9,790.56 and 3,408.72 is: 5,111.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,529.20 : 9,790.56 = 3,408.72 : x
  2. Step 2: Convert to fraction form
    6,529.20/9,790.56 = 3,408.72/x
  3. Step 3: Cross multiply
    6,529.20x = 9,790.56 × 3,408.72
  4. Step 4: Simplify right side
    6,529.20x = 33,373,277.68
  5. Step 5: Solve for x
    x = 33,373,277.68/6,529.20
  6. Step 6: Final answer
    x = 5,111.39

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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.