Home / 2,279.02-3,420.87-1,183.09

Finding the Fourth Proportional to 2,279.02, 3,420.87 and 1,183.09

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Solution

The fourth proportional to 2,279.02, 3,420.87 and 1,183.09 is: 1,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.02 : 3,420.87 = 1,183.09 : x
  2. Step 2: Convert to fraction form
    2,279.02/3,420.87 = 1,183.09/x
  3. Step 3: Cross multiply
    2,279.02x = 3,420.87 × 1,183.09
  4. Step 4: Simplify right side
    2,279.02x = 4,047,197.09
  5. Step 5: Solve for x
    x = 4,047,197.09/2,279.02
  6. Step 6: Final answer
    x = 1,775.85

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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.