Home / 2,177.43-3,268.20-792.10

Finding the Fourth Proportional to 2,177.43, 3,268.20 and 792.10

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Solution

The fourth proportional to 2,177.43, 3,268.20 and 792.10 is: 1,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.43 : 3,268.20 = 792.10 : x
  2. Step 2: Convert to fraction form
    2,177.43/3,268.20 = 792.10/x
  3. Step 3: Cross multiply
    2,177.43x = 3,268.20 × 792.10
  4. Step 4: Simplify right side
    2,177.43x = 2,588,753.01
  5. Step 5: Solve for x
    x = 2,588,753.01/2,177.43
  6. Step 6: Final answer
    x = 1,188.90

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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.