Home / 3,942.86-5,443.68-2,452.80

Finding the Fourth Proportional to 3,942.86, 5,443.68 and 2,452.80

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Solution

The fourth proportional to 3,942.86, 5,443.68 and 2,452.80 is: 3,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.86 : 5,443.68 = 2,452.80 : x
  2. Step 2: Convert to fraction form
    3,942.86/5,443.68 = 2,452.80/x
  3. Step 3: Cross multiply
    3,942.86x = 5,443.68 × 2,452.80
  4. Step 4: Simplify right side
    3,942.86x = 13,352,258.30
  5. Step 5: Solve for x
    x = 13,352,258.30/3,942.86
  6. Step 6: Final answer
    x = 3,386.44

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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.