Home / 1,240.08-1,855.77-1,169.92

Finding the Fourth Proportional to 1,240.08, 1,855.77 and 1,169.92

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Solution

The fourth proportional to 1,240.08, 1,855.77 and 1,169.92 is: 1,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.08 : 1,855.77 = 1,169.92 : x
  2. Step 2: Convert to fraction form
    1,240.08/1,855.77 = 1,169.92/x
  3. Step 3: Cross multiply
    1,240.08x = 1,855.77 × 1,169.92
  4. Step 4: Simplify right side
    1,240.08x = 2,171,102.44
  5. Step 5: Solve for x
    x = 2,171,102.44/1,240.08
  6. Step 6: Final answer
    x = 1,750.78

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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.