Home / 4,748.39-7,122.65-3,105.71

Finding the Fourth Proportional to 4,748.39, 7,122.65 and 3,105.71

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Solution

The fourth proportional to 4,748.39, 7,122.65 and 3,105.71 is: 4,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.39 : 7,122.65 = 3,105.71 : x
  2. Step 2: Convert to fraction form
    4,748.39/7,122.65 = 3,105.71/x
  3. Step 3: Cross multiply
    4,748.39x = 7,122.65 × 3,105.71
  4. Step 4: Simplify right side
    4,748.39x = 22,120,885.33
  5. Step 5: Solve for x
    x = 22,120,885.33/4,748.39
  6. Step 6: Final answer
    x = 4,658.61

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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.