Home / 1,579.78-2,365.09-1,191.41

Finding the Fourth Proportional to 1,579.78, 2,365.09 and 1,191.41

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Solution

The fourth proportional to 1,579.78, 2,365.09 and 1,191.41 is: 1,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.78 : 2,365.09 = 1,191.41 : x
  2. Step 2: Convert to fraction form
    1,579.78/2,365.09 = 1,191.41/x
  3. Step 3: Cross multiply
    1,579.78x = 2,365.09 × 1,191.41
  4. Step 4: Simplify right side
    1,579.78x = 2,817,791.88
  5. Step 5: Solve for x
    x = 2,817,791.88/1,579.78
  6. Step 6: Final answer
    x = 1,783.66

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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.