Home / 1,768.20-2,438.64-1,103.82

Finding the Fourth Proportional to 1,768.20, 2,438.64 and 1,103.82

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Solution

The fourth proportional to 1,768.20, 2,438.64 and 1,103.82 is: 1,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.20 : 2,438.64 = 1,103.82 : x
  2. Step 2: Convert to fraction form
    1,768.20/2,438.64 = 1,103.82/x
  3. Step 3: Cross multiply
    1,768.20x = 2,438.64 × 1,103.82
  4. Step 4: Simplify right side
    1,768.20x = 2,691,819.60
  5. Step 5: Solve for x
    x = 2,691,819.60/1,768.20
  6. Step 6: Final answer
    x = 1,522.35

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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.