Home / 5,581.76-8,374.66-2,119

Finding the Fourth Proportional to 5,581.76, 8,374.66 and 2,119

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Solution

The fourth proportional to 5,581.76, 8,374.66 and 2,119 is: 3,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.76 : 8,374.66 = 2,119 : x
  2. Step 2: Convert to fraction form
    5,581.76/8,374.66 = 2,119/x
  3. Step 3: Cross multiply
    5,581.76x = 8,374.66 × 2,119
  4. Step 4: Simplify right side
    5,581.76x = 17,745,904.54
  5. Step 5: Solve for x
    x = 17,745,904.54/5,581.76
  6. Step 6: Final answer
    x = 3,179.27

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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.