Home / 3,788.34-5,226.39-2,391.54

Finding the Fourth Proportional to 3,788.34, 5,226.39 and 2,391.54

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Solution

The fourth proportional to 3,788.34, 5,226.39 and 2,391.54 is: 3,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.34 : 5,226.39 = 2,391.54 : x
  2. Step 2: Convert to fraction form
    3,788.34/5,226.39 = 2,391.54/x
  3. Step 3: Cross multiply
    3,788.34x = 5,226.39 × 2,391.54
  4. Step 4: Simplify right side
    3,788.34x = 12,499,120.74
  5. Step 5: Solve for x
    x = 12,499,120.74/3,788.34
  6. Step 6: Final answer
    x = 3,299.37

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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.