Home / 7,214.13-10,821.20-2,019.87

Finding the Fourth Proportional to 7,214.13, 10,821.20 and 2,019.87

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Solution

The fourth proportional to 7,214.13, 10,821.20 and 2,019.87 is: 3,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.13 : 10,821.20 = 2,019.87 : x
  2. Step 2: Convert to fraction form
    7,214.13/10,821.20 = 2,019.87/x
  3. Step 3: Cross multiply
    7,214.13x = 10,821.20 × 2,019.87
  4. Step 4: Simplify right side
    7,214.13x = 21,857,407.14
  5. Step 5: Solve for x
    x = 21,857,407.14/7,214.13
  6. Step 6: Final answer
    x = 3,029.81

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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.