Home / 4,919.60-7,383.72-2,730.80

Finding the Fourth Proportional to 4,919.60, 7,383.72 and 2,730.80

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Solution

The fourth proportional to 4,919.60, 7,383.72 and 2,730.80 is: 4,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.60 : 7,383.72 = 2,730.80 : x
  2. Step 2: Convert to fraction form
    4,919.60/7,383.72 = 2,730.80/x
  3. Step 3: Cross multiply
    4,919.60x = 7,383.72 × 2,730.80
  4. Step 4: Simplify right side
    4,919.60x = 20,163,462.58
  5. Step 5: Solve for x
    x = 20,163,462.58/4,919.60
  6. Step 6: Final answer
    x = 4,098.60

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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.