Home / 4,778.60-7,173.36-2,930.58

Finding the Fourth Proportional to 4,778.60, 7,173.36 and 2,930.58

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Solution

The fourth proportional to 4,778.60, 7,173.36 and 2,930.58 is: 4,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.60 : 7,173.36 = 2,930.58 : x
  2. Step 2: Convert to fraction form
    4,778.60/7,173.36 = 2,930.58/x
  3. Step 3: Cross multiply
    4,778.60x = 7,173.36 × 2,930.58
  4. Step 4: Simplify right side
    4,778.60x = 21,022,105.35
  5. Step 5: Solve for x
    x = 21,022,105.35/4,778.60
  6. Step 6: Final answer
    x = 4,399.22

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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.