Home / 5,418.96-7,477.60-3,028.80

Finding the Fourth Proportional to 5,418.96, 7,477.60 and 3,028.80

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Solution

The fourth proportional to 5,418.96, 7,477.60 and 3,028.80 is: 4,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.96 : 7,477.60 = 3,028.80 : x
  2. Step 2: Convert to fraction form
    5,418.96/7,477.60 = 3,028.80/x
  3. Step 3: Cross multiply
    5,418.96x = 7,477.60 × 3,028.80
  4. Step 4: Simplify right side
    5,418.96x = 22,648,154.88
  5. Step 5: Solve for x
    x = 22,648,154.88/5,418.96
  6. Step 6: Final answer
    x = 4,179.43

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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.