Home / 5,213.30-7,821.41-2,095.49

Finding the Fourth Proportional to 5,213.30, 7,821.41 and 2,095.49

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Solution

The fourth proportional to 5,213.30, 7,821.41 and 2,095.49 is: 3,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.30 : 7,821.41 = 2,095.49 : x
  2. Step 2: Convert to fraction form
    5,213.30/7,821.41 = 2,095.49/x
  3. Step 3: Cross multiply
    5,213.30x = 7,821.41 × 2,095.49
  4. Step 4: Simplify right side
    5,213.30x = 16,389,636.86
  5. Step 5: Solve for x
    x = 16,389,636.86/5,213.30
  6. Step 6: Final answer
    x = 3,143.82

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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.