Home / 4,778.60-7,155.68-2,832.20

Finding the Fourth Proportional to 4,778.60, 7,155.68 and 2,832.20

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Solution

The fourth proportional to 4,778.60, 7,155.68 and 2,832.20 is: 4,241.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.60 : 7,155.68 = 2,832.20 : x
  2. Step 2: Convert to fraction form
    4,778.60/7,155.68 = 2,832.20/x
  3. Step 3: Cross multiply
    4,778.60x = 7,155.68 × 2,832.20
  4. Step 4: Simplify right side
    4,778.60x = 20,266,316.90
  5. Step 5: Solve for x
    x = 20,266,316.90/4,778.60
  6. Step 6: Final answer
    x = 4,241.06

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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.