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Finding the Fourth Proportional to 3,899.22, 5,851.27 and 1,558.88

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Solution

The fourth proportional to 3,899.22, 5,851.27 and 1,558.88 is: 2,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.22 : 5,851.27 = 1,558.88 : x
  2. Step 2: Convert to fraction form
    3,899.22/5,851.27 = 1,558.88/x
  3. Step 3: Cross multiply
    3,899.22x = 5,851.27 × 1,558.88
  4. Step 4: Simplify right side
    3,899.22x = 9,121,398.52
  5. Step 5: Solve for x
    x = 9,121,398.52/3,899.22
  6. Step 6: Final answer
    x = 2,339.29

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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.