Home / 2,780.67-4,171.03-1,136.07

Finding the Fourth Proportional to 2,780.67, 4,171.03 and 1,136.07

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Solution

The fourth proportional to 2,780.67, 4,171.03 and 1,136.07 is: 1,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.67 : 4,171.03 = 1,136.07 : x
  2. Step 2: Convert to fraction form
    2,780.67/4,171.03 = 1,136.07/x
  3. Step 3: Cross multiply
    2,780.67x = 4,171.03 × 1,136.07
  4. Step 4: Simplify right side
    2,780.67x = 4,738,579.21
  5. Step 5: Solve for x
    x = 4,738,579.21/2,780.67
  6. Step 6: Final answer
    x = 1,704.11

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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.