Home / 2,103.22-3,154.26-803.98

Finding the Fourth Proportional to 2,103.22, 3,154.26 and 803.98

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Solution

The fourth proportional to 2,103.22, 3,154.26 and 803.98 is: 1,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.22 : 3,154.26 = 803.98 : x
  2. Step 2: Convert to fraction form
    2,103.22/3,154.26 = 803.98/x
  3. Step 3: Cross multiply
    2,103.22x = 3,154.26 × 803.98
  4. Step 4: Simplify right side
    2,103.22x = 2,535,961.95
  5. Step 5: Solve for x
    x = 2,535,961.95/2,103.22
  6. Step 6: Final answer
    x = 1,205.75

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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.