Home / 2,780.10-4,164.24-2,257.65

Finding the Fourth Proportional to 2,780.10, 4,164.24 and 2,257.65

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Solution

The fourth proportional to 2,780.10, 4,164.24 and 2,257.65 is: 3,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.10 : 4,164.24 = 2,257.65 : x
  2. Step 2: Convert to fraction form
    2,780.10/4,164.24 = 2,257.65/x
  3. Step 3: Cross multiply
    2,780.10x = 4,164.24 × 2,257.65
  4. Step 4: Simplify right side
    2,780.10x = 9,401,396.44
  5. Step 5: Solve for x
    x = 9,401,396.44/2,780.10
  6. Step 6: Final answer
    x = 3,381.68

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1.5x scale

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.