Home / 7,214.38-10,821.60-2,020.12

Finding the Fourth Proportional to 7,214.38, 10,821.60 and 2,020.12

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Solution

The fourth proportional to 7,214.38, 10,821.60 and 2,020.12 is: 3,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.38 : 10,821.60 = 2,020.12 : x
  2. Step 2: Convert to fraction form
    7,214.38/10,821.60 = 2,020.12/x
  3. Step 3: Cross multiply
    7,214.38x = 10,821.60 × 2,020.12
  4. Step 4: Simplify right side
    7,214.38x = 21,860,930.59
  5. Step 5: Solve for x
    x = 21,860,930.59/7,214.38
  6. Step 6: Final answer
    x = 3,030.19

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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.