Home / 5,679.18-8,513.78-2,214

Finding the Fourth Proportional to 5,679.18, 8,513.78 and 2,214

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Solution

The fourth proportional to 5,679.18, 8,513.78 and 2,214 is: 3,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.18 : 8,513.78 = 2,214 : x
  2. Step 2: Convert to fraction form
    5,679.18/8,513.78 = 2,214/x
  3. Step 3: Cross multiply
    5,679.18x = 8,513.78 × 2,214
  4. Step 4: Simplify right side
    5,679.18x = 18,849,497.85
  5. Step 5: Solve for x
    x = 18,849,497.85/5,679.18
  6. Step 6: Final answer
    x = 3,319.05

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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.