Home / 2,581.28-3,867.60-1,808

Finding the Fourth Proportional to 2,581.28, 3,867.60 and 1,808

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Solution

The fourth proportional to 2,581.28, 3,867.60 and 1,808 is: 2,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.28 : 3,867.60 = 1,808 : x
  2. Step 2: Convert to fraction form
    2,581.28/3,867.60 = 1,808/x
  3. Step 3: Cross multiply
    2,581.28x = 3,867.60 × 1,808
  4. Step 4: Simplify right side
    2,581.28x = 6,992,620.80
  5. Step 5: Solve for x
    x = 6,992,620.80/2,581.28
  6. Step 6: Final answer
    x = 2,708.97

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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.