Home / 2,791.60-4,187.40-2,273.20

Finding the Fourth Proportional to 2,791.60, 4,187.40 and 2,273.20

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Solution

The fourth proportional to 2,791.60, 4,187.40 and 2,273.20 is: 3,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.60 : 4,187.40 = 2,273.20 : x
  2. Step 2: Convert to fraction form
    2,791.60/4,187.40 = 2,273.20/x
  3. Step 3: Cross multiply
    2,791.60x = 4,187.40 × 2,273.20
  4. Step 4: Simplify right side
    2,791.60x = 9,518,797.68
  5. Step 5: Solve for x
    x = 9,518,797.68/2,791.60
  6. Step 6: Final answer
    x = 3,409.80

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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.