Home / 5,623.38-7,760.25-3,105.68

Finding the Fourth Proportional to 5,623.38, 7,760.25 and 3,105.68

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Solution

The fourth proportional to 5,623.38, 7,760.25 and 3,105.68 is: 4,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.38 : 7,760.25 = 3,105.68 : x
  2. Step 2: Convert to fraction form
    5,623.38/7,760.25 = 3,105.68/x
  3. Step 3: Cross multiply
    5,623.38x = 7,760.25 × 3,105.68
  4. Step 4: Simplify right side
    5,623.38x = 24,100,814.42
  5. Step 5: Solve for x
    x = 24,100,814.42/5,623.38
  6. Step 6: Final answer
    x = 4,285.82

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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.