Home / 5,183.60-7,775.40-4,902.80

Finding the Fourth Proportional to 5,183.60, 7,775.40 and 4,902.80

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Solution

The fourth proportional to 5,183.60, 7,775.40 and 4,902.80 is: 7,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.60 : 7,775.40 = 4,902.80 : x
  2. Step 2: Convert to fraction form
    5,183.60/7,775.40 = 4,902.80/x
  3. Step 3: Cross multiply
    5,183.60x = 7,775.40 × 4,902.80
  4. Step 4: Simplify right side
    5,183.60x = 38,121,231.12
  5. Step 5: Solve for x
    x = 38,121,231.12/5,183.60
  6. Step 6: Final answer
    x = 7,354.20

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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.