Home / 5,113.77-7,676.34-2,647.92

Finding the Fourth Proportional to 5,113.77, 7,676.34 and 2,647.92

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Solution

The fourth proportional to 5,113.77, 7,676.34 and 2,647.92 is: 3,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.77 : 7,676.34 = 2,647.92 : x
  2. Step 2: Convert to fraction form
    5,113.77/7,676.34 = 2,647.92/x
  3. Step 3: Cross multiply
    5,113.77x = 7,676.34 × 2,647.92
  4. Step 4: Simplify right side
    5,113.77x = 20,326,334.21
  5. Step 5: Solve for x
    x = 20,326,334.21/5,113.77
  6. Step 6: Final answer
    x = 3,974.83

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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.