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Finding the Fourth Proportional to 6,578.19, 9,867.42 and 1,898.55

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Solution

The fourth proportional to 6,578.19, 9,867.42 and 1,898.55 is: 2,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,578.19 : 9,867.42 = 1,898.55 : x
  2. Step 2: Convert to fraction form
    6,578.19/9,867.42 = 1,898.55/x
  3. Step 3: Cross multiply
    6,578.19x = 9,867.42 × 1,898.55
  4. Step 4: Simplify right side
    6,578.19x = 18,733,790.24
  5. Step 5: Solve for x
    x = 18,733,790.24/6,578.19
  6. Step 6: Final answer
    x = 2,847.86

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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.