Home / 5,811.92-8,719.68-2,114.16

Finding the Fourth Proportional to 5,811.92, 8,719.68 and 2,114.16

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Solution

The fourth proportional to 5,811.92, 8,719.68 and 2,114.16 is: 3,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.92 : 8,719.68 = 2,114.16 : x
  2. Step 2: Convert to fraction form
    5,811.92/8,719.68 = 2,114.16/x
  3. Step 3: Cross multiply
    5,811.92x = 8,719.68 × 2,114.16
  4. Step 4: Simplify right side
    5,811.92x = 18,434,798.67
  5. Step 5: Solve for x
    x = 18,434,798.67/5,811.92
  6. Step 6: Final answer
    x = 3,171.89

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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.