Home / 7,176.78-10,767.92-3,478.73

Finding the Fourth Proportional to 7,176.78, 10,767.92 and 3,478.73

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Solution

The fourth proportional to 7,176.78, 10,767.92 and 3,478.73 is: 5,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.78 : 10,767.92 = 3,478.73 : x
  2. Step 2: Convert to fraction form
    7,176.78/10,767.92 = 3,478.73/x
  3. Step 3: Cross multiply
    7,176.78x = 10,767.92 × 3,478.73
  4. Step 4: Simplify right side
    7,176.78x = 37,458,615.11
  5. Step 5: Solve for x
    x = 37,458,615.11/7,176.78
  6. Step 6: Final answer
    x = 5,219.42

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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.