Home / 1,777.78-2,662.82-1,289.75

Finding the Fourth Proportional to 1,777.78, 2,662.82 and 1,289.75

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Solution

The fourth proportional to 1,777.78, 2,662.82 and 1,289.75 is: 1,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.78 : 2,662.82 = 1,289.75 : x
  2. Step 2: Convert to fraction form
    1,777.78/2,662.82 = 1,289.75/x
  3. Step 3: Cross multiply
    1,777.78x = 2,662.82 × 1,289.75
  4. Step 4: Simplify right side
    1,777.78x = 3,434,365.65
  5. Step 5: Solve for x
    x = 3,434,365.65/1,777.78
  6. Step 6: Final answer
    x = 1,931.83

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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.