Home / 1,780.22-2,670.41-1,262.54

Finding the Fourth Proportional to 1,780.22, 2,670.41 and 1,262.54

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Solution

The fourth proportional to 1,780.22, 2,670.41 and 1,262.54 is: 1,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.22 : 2,670.41 = 1,262.54 : x
  2. Step 2: Convert to fraction form
    1,780.22/2,670.41 = 1,262.54/x
  3. Step 3: Cross multiply
    1,780.22x = 2,670.41 × 1,262.54
  4. Step 4: Simplify right side
    1,780.22x = 3,371,479.78
  5. Step 5: Solve for x
    x = 3,371,479.78/1,780.22
  6. Step 6: Final answer
    x = 1,893.86

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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.