Home / 5,981.01-8,971.85-1,821.15

Finding the Fourth Proportional to 5,981.01, 8,971.85 and 1,821.15

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Solution

The fourth proportional to 5,981.01, 8,971.85 and 1,821.15 is: 2,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.01 : 8,971.85 = 1,821.15 : x
  2. Step 2: Convert to fraction form
    5,981.01/8,971.85 = 1,821.15/x
  3. Step 3: Cross multiply
    5,981.01x = 8,971.85 × 1,821.15
  4. Step 4: Simplify right side
    5,981.01x = 16,339,078.94
  5. Step 5: Solve for x
    x = 16,339,078.94/5,981.01
  6. Step 6: Final answer
    x = 2,731.83

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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.