Home / 5,140.24-7,709.08-2,219.92

Finding the Fourth Proportional to 5,140.24, 7,709.08 and 2,219.92

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Solution

The fourth proportional to 5,140.24, 7,709.08 and 2,219.92 is: 3,329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.24 : 7,709.08 = 2,219.92 : x
  2. Step 2: Convert to fraction form
    5,140.24/7,709.08 = 2,219.92/x
  3. Step 3: Cross multiply
    5,140.24x = 7,709.08 × 2,219.92
  4. Step 4: Simplify right side
    5,140.24x = 17,113,540.87
  5. Step 5: Solve for x
    x = 17,113,540.87/5,140.24
  6. Step 6: Final answer
    x = 3,329.33

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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.