Home / 2,780.22-4,170.34-1,962.83

Finding the Fourth Proportional to 2,780.22, 4,170.34 and 1,962.83

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Solution

The fourth proportional to 2,780.22, 4,170.34 and 1,962.83 is: 2,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.22 : 4,170.34 = 1,962.83 : x
  2. Step 2: Convert to fraction form
    2,780.22/4,170.34 = 1,962.83/x
  3. Step 3: Cross multiply
    2,780.22x = 4,170.34 × 1,962.83
  4. Step 4: Simplify right side
    2,780.22x = 8,185,670.30
  5. Step 5: Solve for x
    x = 8,185,670.30/2,780.22
  6. Step 6: Final answer
    x = 2,944.25

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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.