Home / 7,178.70-10,769.57-3,622.85

Finding the Fourth Proportional to 7,178.70, 10,769.57 and 3,622.85

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Solution

The fourth proportional to 7,178.70, 10,769.57 and 3,622.85 is: 5,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.70 : 10,769.57 = 3,622.85 : x
  2. Step 2: Convert to fraction form
    7,178.70/10,769.57 = 3,622.85/x
  3. Step 3: Cross multiply
    7,178.70x = 10,769.57 × 3,622.85
  4. Step 4: Simplify right side
    7,178.70x = 39,016,464.71
  5. Step 5: Solve for x
    x = 39,016,464.71/7,178.70
  6. Step 6: Final answer
    x = 5,435.03

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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.