Home / 1,808.10-2,709.27-1,158.30

Finding the Fourth Proportional to 1,808.10, 2,709.27 and 1,158.30

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Solution

The fourth proportional to 1,808.10, 2,709.27 and 1,158.30 is: 1,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.10 : 2,709.27 = 1,158.30 : x
  2. Step 2: Convert to fraction form
    1,808.10/2,709.27 = 1,158.30/x
  3. Step 3: Cross multiply
    1,808.10x = 2,709.27 × 1,158.30
  4. Step 4: Simplify right side
    1,808.10x = 3,138,147.44
  5. Step 5: Solve for x
    x = 3,138,147.44/1,808.10
  6. Step 6: Final answer
    x = 1,735.61

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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.