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Finding the Fourth Proportional to 3,858.22, 5,778.90 and 2,372.92

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Solution

The fourth proportional to 3,858.22, 5,778.90 and 2,372.92 is: 3,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.22 : 5,778.90 = 2,372.92 : x
  2. Step 2: Convert to fraction form
    3,858.22/5,778.90 = 2,372.92/x
  3. Step 3: Cross multiply
    3,858.22x = 5,778.90 × 2,372.92
  4. Step 4: Simplify right side
    3,858.22x = 13,712,867.39
  5. Step 5: Solve for x
    x = 13,712,867.39/3,858.22
  6. Step 6: Final answer
    x = 3,554.20

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1.5x scale

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.