Home / 5,079.54-7,619.85-1,381.83

Finding the Fourth Proportional to 5,079.54, 7,619.85 and 1,381.83

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Solution

The fourth proportional to 5,079.54, 7,619.85 and 1,381.83 is: 2,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.54 : 7,619.85 = 1,381.83 : x
  2. Step 2: Convert to fraction form
    5,079.54/7,619.85 = 1,381.83/x
  3. Step 3: Cross multiply
    5,079.54x = 7,619.85 × 1,381.83
  4. Step 4: Simplify right side
    5,079.54x = 10,529,337.33
  5. Step 5: Solve for x
    x = 10,529,337.33/5,079.54
  6. Step 6: Final answer
    x = 2,072.89

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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.