Home / 5,076.92-7,615.91-1,379.20

Finding the Fourth Proportional to 5,076.92, 7,615.91 and 1,379.20

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Solution

The fourth proportional to 5,076.92, 7,615.91 and 1,379.20 is: 2,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.92 : 7,615.91 = 1,379.20 : x
  2. Step 2: Convert to fraction form
    5,076.92/7,615.91 = 1,379.20/x
  3. Step 3: Cross multiply
    5,076.92x = 7,615.91 × 1,379.20
  4. Step 4: Simplify right side
    5,076.92x = 10,503,847.48
  5. Step 5: Solve for x
    x = 10,503,847.48/5,076.92
  6. Step 6: Final answer
    x = 2,068.94

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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.