Home / 2,786.95-4,177.68-1,962.64

Finding the Fourth Proportional to 2,786.95, 4,177.68 and 1,962.64

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Solution

The fourth proportional to 2,786.95, 4,177.68 and 1,962.64 is: 2,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.95 : 4,177.68 = 1,962.64 : x
  2. Step 2: Convert to fraction form
    2,786.95/4,177.68 = 1,962.64/x
  3. Step 3: Cross multiply
    2,786.95x = 4,177.68 × 1,962.64
  4. Step 4: Simplify right side
    2,786.95x = 8,199,281.88
  5. Step 5: Solve for x
    x = 8,199,281.88/2,786.95
  6. Step 6: Final answer
    x = 2,942.03

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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.