Home / 4,123.78-6,170.22-2,451.78

Finding the Fourth Proportional to 4,123.78, 6,170.22 and 2,451.78

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Solution

The fourth proportional to 4,123.78, 6,170.22 and 2,451.78 is: 3,668.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.78 : 6,170.22 = 2,451.78 : x
  2. Step 2: Convert to fraction form
    4,123.78/6,170.22 = 2,451.78/x
  3. Step 3: Cross multiply
    4,123.78x = 6,170.22 × 2,451.78
  4. Step 4: Simplify right side
    4,123.78x = 15,128,021.99
  5. Step 5: Solve for x
    x = 15,128,021.99/4,123.78
  6. Step 6: Final answer
    x = 3,668.48

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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.