Home / 2,780.92-3,837-1,732.24

Finding the Fourth Proportional to 2,780.92, 3,837 and 1,732.24

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Solution

The fourth proportional to 2,780.92, 3,837 and 1,732.24 is: 2,390.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.92 : 3,837 = 1,732.24 : x
  2. Step 2: Convert to fraction form
    2,780.92/3,837 = 1,732.24/x
  3. Step 3: Cross multiply
    2,780.92x = 3,837 × 1,732.24
  4. Step 4: Simplify right side
    2,780.92x = 6,646,604.88
  5. Step 5: Solve for x
    x = 6,646,604.88/2,780.92
  6. Step 6: Final answer
    x = 2,390.07

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1.5x scale

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.