Home / 2,780.92-4,168.95-2,372.68

Finding the Fourth Proportional to 2,780.92, 4,168.95 and 2,372.68

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Solution

The fourth proportional to 2,780.92, 4,168.95 and 2,372.68 is: 3,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.92 : 4,168.95 = 2,372.68 : x
  2. Step 2: Convert to fraction form
    2,780.92/4,168.95 = 2,372.68/x
  3. Step 3: Cross multiply
    2,780.92x = 4,168.95 × 2,372.68
  4. Step 4: Simplify right side
    2,780.92x = 9,891,584.29
  5. Step 5: Solve for x
    x = 9,891,584.29/2,780.92
  6. Step 6: Final answer
    x = 3,556.95

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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.