Home / 2,110.60-3,165.92-878.88

Finding the Fourth Proportional to 2,110.60, 3,165.92 and 878.88

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Solution

The fourth proportional to 2,110.60, 3,165.92 and 878.88 is: 1,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.60 : 3,165.92 = 878.88 : x
  2. Step 2: Convert to fraction form
    2,110.60/3,165.92 = 878.88/x
  3. Step 3: Cross multiply
    2,110.60x = 3,165.92 × 878.88
  4. Step 4: Simplify right side
    2,110.60x = 2,782,463.77
  5. Step 5: Solve for x
    x = 2,782,463.77/2,110.60
  6. Step 6: Final answer
    x = 1,318.33

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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.