Home / 5,244.35-7,864.19-2,778.57

Finding the Fourth Proportional to 5,244.35, 7,864.19 and 2,778.57

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Solution

The fourth proportional to 5,244.35, 7,864.19 and 2,778.57 is: 4,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.35 : 7,864.19 = 2,778.57 : x
  2. Step 2: Convert to fraction form
    5,244.35/7,864.19 = 2,778.57/x
  3. Step 3: Cross multiply
    5,244.35x = 7,864.19 × 2,778.57
  4. Step 4: Simplify right side
    5,244.35x = 21,851,198.94
  5. Step 5: Solve for x
    x = 21,851,198.94/5,244.35
  6. Step 6: Final answer
    x = 4,166.62

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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.