Home / 1,944.45-2,910.96-1,285.11

Finding the Fourth Proportional to 1,944.45, 2,910.96 and 1,285.11

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Solution

The fourth proportional to 1,944.45, 2,910.96 and 1,285.11 is: 1,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.45 : 2,910.96 = 1,285.11 : x
  2. Step 2: Convert to fraction form
    1,944.45/2,910.96 = 1,285.11/x
  3. Step 3: Cross multiply
    1,944.45x = 2,910.96 × 1,285.11
  4. Step 4: Simplify right side
    1,944.45x = 3,740,903.81
  5. Step 5: Solve for x
    x = 3,740,903.81/1,944.45
  6. Step 6: Final answer
    x = 1,923.89

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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.