Home / 2,110.40-3,166.74-878.66

Finding the Fourth Proportional to 2,110.40, 3,166.74 and 878.66

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Solution

The fourth proportional to 2,110.40, 3,166.74 and 878.66 is: 1,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.40 : 3,166.74 = 878.66 : x
  2. Step 2: Convert to fraction form
    2,110.40/3,166.74 = 878.66/x
  3. Step 3: Cross multiply
    2,110.40x = 3,166.74 × 878.66
  4. Step 4: Simplify right side
    2,110.40x = 2,782,487.77
  5. Step 5: Solve for x
    x = 2,782,487.77/2,110.40
  6. Step 6: Final answer
    x = 1,318.46

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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.