Home / 3,115.44-4,298.82-1,788.96

Finding the Fourth Proportional to 3,115.44, 4,298.82 and 1,788.96

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Solution

The fourth proportional to 3,115.44, 4,298.82 and 1,788.96 is: 2,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.44 : 4,298.82 = 1,788.96 : x
  2. Step 2: Convert to fraction form
    3,115.44/4,298.82 = 1,788.96/x
  3. Step 3: Cross multiply
    3,115.44x = 4,298.82 × 1,788.96
  4. Step 4: Simplify right side
    3,115.44x = 7,690,417.03
  5. Step 5: Solve for x
    x = 7,690,417.03/3,115.44
  6. Step 6: Final answer
    x = 2,468.49

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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.