Home / 1,985.08-2,739.27-1,100.85

Finding the Fourth Proportional to 1,985.08, 2,739.27 and 1,100.85

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Solution

The fourth proportional to 1,985.08, 2,739.27 and 1,100.85 is: 1,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.08 : 2,739.27 = 1,100.85 : x
  2. Step 2: Convert to fraction form
    1,985.08/2,739.27 = 1,100.85/x
  3. Step 3: Cross multiply
    1,985.08x = 2,739.27 × 1,100.85
  4. Step 4: Simplify right side
    1,985.08x = 3,015,511.68
  5. Step 5: Solve for x
    x = 3,015,511.68/1,985.08
  6. Step 6: Final answer
    x = 1,519.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.