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Finding the Fourth Proportional to 5,919.78, 8,879.52 and 1,537.29

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Solution

The fourth proportional to 5,919.78, 8,879.52 and 1,537.29 is: 2,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.78 : 8,879.52 = 1,537.29 : x
  2. Step 2: Convert to fraction form
    5,919.78/8,879.52 = 1,537.29/x
  3. Step 3: Cross multiply
    5,919.78x = 8,879.52 × 1,537.29
  4. Step 4: Simplify right side
    5,919.78x = 13,650,397.30
  5. Step 5: Solve for x
    x = 13,650,397.30/5,919.78
  6. Step 6: Final answer
    x = 2,305.90

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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.