Home / 4,765.55-7,138.88-3,179.39

Finding the Fourth Proportional to 4,765.55, 7,138.88 and 3,179.39

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Solution

The fourth proportional to 4,765.55, 7,138.88 and 3,179.39 is: 4,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.55 : 7,138.88 = 3,179.39 : x
  2. Step 2: Convert to fraction form
    4,765.55/7,138.88 = 3,179.39/x
  3. Step 3: Cross multiply
    4,765.55x = 7,138.88 × 3,179.39
  4. Step 4: Simplify right side
    4,765.55x = 22,697,267.79
  5. Step 5: Solve for x
    x = 22,697,267.79/4,765.55
  6. Step 6: Final answer
    x = 4,762.78

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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.