Home / 5,791.10-8,686.62-1,408.56

Finding the Fourth Proportional to 5,791.10, 8,686.62 and 1,408.56

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Solution

The fourth proportional to 5,791.10, 8,686.62 and 1,408.56 is: 2,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.10 : 8,686.62 = 1,408.56 : x
  2. Step 2: Convert to fraction form
    5,791.10/8,686.62 = 1,408.56/x
  3. Step 3: Cross multiply
    5,791.10x = 8,686.62 × 1,408.56
  4. Step 4: Simplify right side
    5,791.10x = 12,235,625.47
  5. Step 5: Solve for x
    x = 12,235,625.47/5,791.10
  6. Step 6: Final answer
    x = 2,112.83

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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.