Home / 2,209.14-3,312.54-1,330.83

Finding the Fourth Proportional to 2,209.14, 3,312.54 and 1,330.83

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Solution

The fourth proportional to 2,209.14, 3,312.54 and 1,330.83 is: 1,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.14 : 3,312.54 = 1,330.83 : x
  2. Step 2: Convert to fraction form
    2,209.14/3,312.54 = 1,330.83/x
  3. Step 3: Cross multiply
    2,209.14x = 3,312.54 × 1,330.83
  4. Step 4: Simplify right side
    2,209.14x = 4,408,427.61
  5. Step 5: Solve for x
    x = 4,408,427.61/2,209.14
  6. Step 6: Final answer
    x = 1,995.54

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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.