Home / 5,157.89-7,118.06-2,919.73

Finding the Fourth Proportional to 5,157.89, 7,118.06 and 2,919.73

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Solution

The fourth proportional to 5,157.89, 7,118.06 and 2,919.73 is: 4,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.89 : 7,118.06 = 2,919.73 : x
  2. Step 2: Convert to fraction form
    5,157.89/7,118.06 = 2,919.73/x
  3. Step 3: Cross multiply
    5,157.89x = 7,118.06 × 2,919.73
  4. Step 4: Simplify right side
    5,157.89x = 20,782,780.93
  5. Step 5: Solve for x
    x = 20,782,780.93/5,157.89
  6. Step 6: Final answer
    x = 4,029.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.