Home / 2,780.98-3,837.82-1,601.98

Finding the Fourth Proportional to 2,780.98, 3,837.82 and 1,601.98

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Solution

The fourth proportional to 2,780.98, 3,837.82 and 1,601.98 is: 2,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.98 : 3,837.82 = 1,601.98 : x
  2. Step 2: Convert to fraction form
    2,780.98/3,837.82 = 1,601.98/x
  3. Step 3: Cross multiply
    2,780.98x = 3,837.82 × 1,601.98
  4. Step 4: Simplify right side
    2,780.98x = 6,148,110.88
  5. Step 5: Solve for x
    x = 6,148,110.88/2,780.98
  6. Step 6: Final answer
    x = 2,210.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.