Home / 5,197.30-7,790.19-3,120.10

Finding the Fourth Proportional to 5,197.30, 7,790.19 and 3,120.10

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Solution

The fourth proportional to 5,197.30, 7,790.19 and 3,120.10 is: 4,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.30 : 7,790.19 = 3,120.10 : x
  2. Step 2: Convert to fraction form
    5,197.30/7,790.19 = 3,120.10/x
  3. Step 3: Cross multiply
    5,197.30x = 7,790.19 × 3,120.10
  4. Step 4: Simplify right side
    5,197.30x = 24,306,171.82
  5. Step 5: Solve for x
    x = 24,306,171.82/5,197.30
  6. Step 6: Final answer
    x = 4,676.69

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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.