Home / 4,720.92-7,078.62-2,769

Finding the Fourth Proportional to 4,720.92, 7,078.62 and 2,769

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Solution

The fourth proportional to 4,720.92, 7,078.62 and 2,769 is: 4,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.92 : 7,078.62 = 2,769 : x
  2. Step 2: Convert to fraction form
    4,720.92/7,078.62 = 2,769/x
  3. Step 3: Cross multiply
    4,720.92x = 7,078.62 × 2,769
  4. Step 4: Simplify right side
    4,720.92x = 19,600,698.78
  5. Step 5: Solve for x
    x = 19,600,698.78/4,720.92
  6. Step 6: Final answer
    x = 4,151.88

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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.